1.第一happening or coming before all other similar things or people; 1st
his first wife他的第一个妻子
It was the first time they had ever met.这是他们初次见面。
I didn't take the first bus.我没有乘坐首班公共汽车。
students in their first year at college大学一年级学生
your first impressions你的初步印象
She resolved to do it at the first(= earliest) opportunity.她决定一有机会就去做。
King Edward I(= pronounced ‘King Edward the First’)英王爱德华一世
the first of May/May 1st5 月 1 日
His second book is better than his first.他的第二部书比第一部好。
2.最重要的；首要的；最优秀的the most important or best
Your first duty is to your family.你首先应对家庭尽责。
She won first prize in the competition.她在竞赛中获得一等奖。
an issue of the first importance最重要的问题
1.首先；第一；最初before anyone or anything else; at the beginning
‘Do you want a drink?’ ‘I'll finish my work first.’“你想喝杯饮料吗？”“我要先完成工作。”
First I had to decide what to wear.首先我得决定穿什么。
Who came first in the race(= who won) ?赛跑谁第一？
It plunged nose first into the river.它一头跳入水中。
2.第一次；首次for the first time
When did you first meet him?你和他初次见面是何时？
3.（列举时用）第一，首先used to introduce the first of a list of points you want to make in a speech or piece of writing
This method has two advantages: first it is cheaper and second it is quicker.这个方法有两个优点：一是更便宜，二是较快。
4.（强调不愿意）宁可，宁愿used to emphasize that you are determined not to do sth
She swore that she wouldn't apologize─she'd die first!她发誓决不道歉，宁死也不！
I didn't like the job much at first.起初我并不很喜欢这个工作。
At first I thought he was shy, but then I discovered he was just not interested in other people.起先我以为他腼腆，后来才发现他就是对别人没兴趣。
If at first you don't succeed, try, try again.一次不成功就反复尝试。
I didn't like the job much at first.起初我并不很喜欢这个工作。
At first I thought he was shy, but then I discovered he was just not interested in other people.起先我以为他腼腆，后来才发现他就是对别人没兴趣。
If at first you don't succeed, try, try again.一次不成功就反复尝试。
In any decision she makes, her family always comes first.她作任何决定都是家庭第一。
In any decision she makes, her family always comes first.她作任何决定都是家庭第一。
He does a little teaching, but first and foremost he's a writer.他干一点教学，但首要的是写作。
He does a little teaching, but first and foremost he's a writer.他干一点教学，但首要的是写作。
She regarded herself, first and last, as a musician.她认为她自己是一个不折不扣的音乐家。
She regarded herself, first and last, as a musician.她认为她自己是一个不折不扣的音乐家。
Tickets are available on a first come, first served basis.票先来先买，售完为止。
Tickets are available on a first come, first served basis.票先来先买，售完为止。
First of all, let me ask you something.首先，让我问你一件事。
The content of any article needs, first of all, to be relevant to the reader.任何文章的内容都首先要与读者有关。
First of all, let me ask you something.首先，让我问你一件事。
The content of any article needs, first of all, to be relevant to the reader.任何文章的内容都首先要与读者有关。
First off, let's see how much it'll cost.首先咱们看看这要花多少钱。
First off, let's see how much it'll cost.首先咱们看看这要花多少钱。
She always puts her children first.她总是把子女放在第一位。
She always puts her children first.她总是把子女放在第一位。
1.[c]第一个人（或事物）the first person or thing mentioned; the first person or thing to do a particular thing
I was the first in my family to go to college.我是我们家第一个大学生。
Sheila and Jim were the first to arrive.希拉和吉姆最先到的。
I'd be the first to admit(= I will most willingly admit) I might be wrong.我非常愿意承认我可能错了。
The first I heard about the wedding(= the first time I became aware of it) was when I saw it in the local paper.我最初知道他们结婚的消息是从当地报纸上看到的。
2.[c][ususing]空前的成就；前所未有的事情an achievement, event, etc., never done or experienced before
We went on a cruise, a first for both of us.我俩都是平生第一次去海上旅游。
3.[u]（汽车、自行车等的）一挡，最低挡the lowest gear on a car, bicycle, etc. that you use when you are moving slowly
He stuck the car in first and revved.他挂上了一挡，开动了汽车。
4.[c]~ (in sth)（英国大学学位）最高成绩，优等成绩the highest level of university degree at British universities
She got a first in maths at Exeter.她在埃克塞特大学毕业，获数学一级优等学位。
They were attracted to each other from the first.他俩一见倾心。
They were attracted to each other from the first.他俩一见倾心。
It's a fine performance that commands attention from first to last.这是个精彩的演出，自始至终都扣人心弦。
It's a fine performance that commands attention from first to last.这是个精彩的演出，自始至终都扣人心弦。
Your first words should convey that you care about her. Show your love for her.
你第一句话要先表达，你是很关心阿嬷的，这就表示你爱她。
I only found a few of the stores interesting enough to describe and I'll share that with you in a moment, but first. . .
我发现只有很少的几间店让我有足够的兴致去描述它们，我会马上与你们分享，但首先…
" Yes, you first sit down, if it was done by Cheng Yakun, he 'd call. " Han Lengyan frowned, looked out of the window, floating in the air.
“是啊，你先坐下来，如果真的是成亚坤干的，他肯定会打电话来的。”韩冷烟皱着眉头，目光看着窗外，思绪漂浮在空气中。
Now it seems to you that the task wasn't as boring as you first thought.
现在，对你来说这个任务并没有起初认为的那么无聊。
First, the data is often provided by the rated governments themselves, and he says governments lie.
首先那些资料数据往往是那些被评比的政府自己提供的。他说，政府不说实话。
Or at least, made him re-think chopping her to pieces on first sight.
好吧，至少让他在第一次看到她时对是否要把她撕成碎片进行了三思。
Technically it was the first full year since the end of the Great Recession.
从技术上讲，这是大萧条结束后的第一个完整年度。
There is no exact date for when the first hula hoop was made, but it seems to be an ancient toy.
第一个呼拉圈是在何时被制作出来并无确切日期，但它似乎是个年代久远的玩具。
We are ready to make a very important announcement that prepares the ground for our formal first contact with you.
我们已经准备了一个非常重要的公告，这将为我们正式的接触打下基础。
First there was the button, then came the touch screen - and now we have no phone at all.
先是有按键，后来有了触摸屏——现在我们连电话都不需要了。
Only a few days before, France had also begun to feel the first numbing blows of our weapons.
几天前，法国也开始在我们的武器的威力下迅速瘫痪。
When the train came in, Michael boarded it first and without knowing it, dropped his ticket on the platform as he got into the carriage.
他们来到车站买好了车票，火车进站后，米歇尔先上了车，他们走进车厢时不小心将自己的车票掉在了月台上。
As you know, many people are judged by first impressions, so be sure to make a good one that shows you are hard working and professional.
正如你所知道的，许多人通过第一印象来判断一个人，因此，确保握手要得体，以说明你工作努力，富有专业精神。
What he had heard on the news was the Elvis had died of what was at first to be thought a heart attack.
他只是从新闻中知道Elvis的死因是在刚开始时被认为的心脏病。
Pitch your feet out, keeping your head down and beginning to prepare for your first pull.
甩出你的双脚，保持面部朝下，准备开始第一次蛙泳手划水。
In the first months of my appointment, difficulties and challenges cropped up in large number, but I wouldn't slacken my pace.
在我上任的最初，我面临过许多的困难和挑战，但我不能懈怠，我必须不断前进来克服它们。
This is the first known life form that seems to be able to swap out one of life's fundamental building blocks with another element.
这是首个已知的生命形态，其看似能替换构成出生命的基本要素。
According to family lore, the ring was given as a gift from the collector to his wife in celebration of the birth of their first baby boy.
据该家族记载，这枚指环是该藏家庆祝其长子出生而送给妻子的礼物。
For the world of the first, easy to say and looking at the world people have several sliver of your life?
为天下之先，说来容易，横看世间人，你一生有几次敢为天下先？
A few impressions stand out vividly from the first years of my life; but "the shadows of the prison-house are on the rest. "
虽然，那些鲜活而生动的记忆来自我生命的最初时光，但是，“牢房一般的阴暗将伴随着我的余生”。
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