closes off

But the lack of a webcam is odd, as it closes off the possibility of using the iPad as a videophone.

不过没有摄像头有点太奇怪了，因为这基本上就关上了用iPad作为录像手机的门了。

Yet sweatshops are only a symptom of poverty, not a cause, and banning them closes off one route out of poverty.

然而，血汗工厂只是贫穷的症状，而不是原因，而且取缔这些工厂，等于关闭了一条摆脱贫困的道路。

During swallowing, the soft palate closes off the back of the nose against food.

吞咽时颚封闭鼻咽通路，因此食物不会达到鼻后部。

This diaphragm has a metal stud which closes off the operation hole when the fluid is completely discharged.

该隔膜具有一个金属螺柱，封闭的流体被完全放电时的操作孔。

It also closes off one of the most attractive options for players.

这个规定同时也让运动员们丢失了一个非常有诱惑力的选择。

An absence of receptors should therefore be a good thing, because it closes off a shortcut to infection.

缺乏趋化因子因此应该是件好事，因为它切断了一片易感区域。

An absence of receptors should therefore bea good thing, because it closes off a shortcuttoinfection.

没有受体本应成就一桩好事，因为这就关闭了一条感染的捷径。