once
常考释义
1.仅一次；一次on one occasion only; one time
I've only been there once.我只去过那里一次。
He cleans his car once a week.他每周洗一次汽车。
She only sees her parents once every six months.她每半年只探望一次父母。
He only did it the once .这种事儿他仅仅干过一次。
2.曾；曾经at some time in the past
I once met your mother.我曾经见过你母亲。
He once lived in Zambia.他曾在赞比亚生活过。
This book was famous once, but nobody reads it today.这本书曾名噪一时，但现在却无人问津。
3.（用于否定句、疑问句和 if 后）曾，根本used in negative sentences and questions, and afterif to mean ‘ever’ or ‘at all’
He never once offered to help.他从没有主动提出过帮忙。
If she once decides to do something, you won't change her mind.她一旦决定干什么，谁也改变不了她的主意。
All at once she lost her temper.她突然大发脾气。
I can't do everything all at once─you'll have to be patient.我不能万事一把抓呀。你可急不得。
All at once she lost her temper.她突然大发脾气。
I can't do everything all at once─you'll have to be patient.我不能万事一把抓呀。你可急不得。
Come here at once!马上到这里来！
Don't all speak at once!大家不要同时讲！
I can't do two things at once.我不能同时做两件事。
Come here at once!马上到这里来！
Don't all speak at once!大家不要同时讲！
I can't do two things at once.我不能同时做两件事。
Just for once he arrived on time.只有这一次他按时到了。
Can't you be nice to each other just this once?难道你们就不能彼此客气哪怕一次？
Just for once he arrived on time.只有这一次他按时到了。
Can't you be nice to each other just this once?难道你们就不能彼此客气哪怕一次？
Once again the train was late.火车又一次晚点了。
Let me hear it just once more.让我再听一遍。
Once again the train was late.火车又一次晚点了。
Let me hear it just once more.让我再听一遍。
Once an actor, always an actor.一朝从艺，永为艺人。
Once an actor, always an actor.一朝从艺，永为艺人。
We need to settle this once and for all.我们需要把这事一次解决。
We need to settle this once and for all.我们需要把这事一次解决。
I don't know her well, I've only met her once or twice.我跟她不很熟，我只见过她一两次。
I don't know her well, I've only met her once or twice.我跟她不很熟，我只见过她一两次。
You've tried that trick once too often.你故伎重施，可这次再逃不脱了。
You've tried that trick once too often.你故伎重施，可这次再逃不脱了。
Once upon a time there was a beautiful princess.从前，有一位美丽的公主。
Once upon a time there was a beautiful princess.从前，有一位美丽的公主。
1.一…就；一旦；当…时候as soon as; when
We didn't know how we would cope once the money had gone.一旦钱花光了，我们就不知道该怎么办了。
The water is fine once you're in!你一旦下了水，就会觉得水里挺舒适。
"You once let me play in your garden, " said the child. "Today you'll come with me into my garden in heaven. "
“你曾经让我在你的花园里游玩，”男骇说，“今天我就要把你带到我天国里的花园里去。”
France, long a symbol of colonialist oppression in North Africa, looked once again like the hated imperial power it had formerly been.
长久以来，法国在北非被视为殖民压迫的象征，此番再次被视为过去那个令人憎恨的皇权。
but it seems to be already well-established that dreams have once and for all left the world of unreality for the world of the laboratory.
但是有一点已经得到了很好地证明——梦已经彻底离开了非现实世界，进入了实验室。
"Once upon a time, there was an ambitious young man who didn't read The Economist. The End, " read one particularly audacious ad from 2004.
2004年一则特别大胆创新的广告这么说到：“从前，有一个很有抱负的年轻人，他不看《经济学人》，完了。”
Once the six entrances exist, the child becomes aware of contact. Therefore, it is said, "The six entrances are the condition for contact. "
由这种六入，这个小孩子就有了一种触觉，所以说「六入缘触」。
Confucius once said: do not put me on your tolerance as you shameless capital!
子曾经曰过：不要把我对你的容忍当成你不要脸的资本！
Once there was a merchant whose business was to exchange money. He opened a shop in the currency market and began to do his business.
从前有个专做银钱兑换生意的商人，在钱币市场上开了个铺子，做起买卖来。
"Once this operation gets over, then the . . . assessment will take place to see if there is any similarity, " he said.
“一旦所有的武装行动结束后，我们才可以判断这些袭击是否存在相同性”，他继续说道。
Once again, the protesters seized Tahrir Square from the security services -- but this time, they would not be driven out of the area.
示威群众这次从安全部门手中夺取了解放广场控制权，——但这次没人能把他们从这地方赶走。
Once thought, and better; Reflect overburden, overburden found, the best is at my side, just like you.
曾经以为，还有更好的；反反覆覆，才发觉，最好的就在我身边，就象你一样。
The maid walked to the side of the vessel to look over, when all at once the child sprang out of her arms, and fell into the water below.
女佣走到该船一边回过头来，当所有的孩子一下子从她的怀里出来了，到下面的落水。
Once she had opened the door, she saw John squatting down, head in hands, crying, as she had expected.
她伸出手打开了门，看见约翰蹲在地上双手抱住头痛哭着。
Had the human once to tell you me to care very much, cares about this urban the distance.
有没有人曾告诉你我很在意，在意这座城市的距离。
This new paper puts to bed once and for all the issue of how the Komodo dragon kills, Shaw says.
Shaw认为这一劳永逸地解决了科莫多龙如何杀死猎物的问题。
I tell you once for all, there is no such thing as an escape possible, ' said the spy, firmly.
“我跟你一句话说断，逃跑是根本不可能的，”密探坚定地说。
Once there was an honest and kind-hearted fellow named Niu Lang (cowboy). He was driven out of home by his sister-in-law.
很久以前有一个诚实善良的人叫牛郎，他被嫂子赶出了家门。
The beast who once was, and now is not, is an eighth king. He belongs to the seven and is going to his destruction.
那先前有，如今没有的兽，就是第八位。他也和那七位同列，并且归于沉沦。
This being said . . . the tides are now subsiding for a time and the calm seas are bringing peace to the once troubled waters.
这么说吧…潮汐现在在下沉，平和的海洋在给充满问题的水域带来平静。
Once upon a time there was a king and a queen who were rich and had all they wanted except that they had no children.
从前，有一对国王和王后。他们很富有，想要什么有什么，只是没孩子。
Once loaded with life-giving oxygen, the blood returns to the heart to take a trip around the body again.
血液一旦饱含生命所需的氧气后，便再度返回心脏，进行第二趟人体之旅。
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