In 1664 Hooke observed a reddish spot on the surface of the planet.1664年, 胡克注意到该行星表面有一个微红斑点。

It was difficult to observe any change in his expression.很难觉察到他的表情中有任何变化。

Her hand was observed to shake.人们注意到她的手在颤抖。

We have observed that you steal.我们曾看到你偷窃。

She had observed his complexion changing colour in the weeks preceding his disappearance.在他消失的前几周, 她曾注意到他的肤色发生了变化。

Are there any classes I could observe?有没有我可以去观摩的课？

I got a chance to observe how a detective actually works.我曾经有个机会去观察侦探实际上是怎样工作的。

Children learn by observing their parents.孩子通过观察自己的父母来学习。

Our sniper teams observed them manning an anti-aircraft gun.我们的狙击队观看他们操作高射炮。

Stern also studies and observes the behaviour of babies.斯特恩还研究、观察婴儿的行为。

The team spent months observing the chimps.小队花了数月来观察黑猩猩。

'He is a fine young man,' observed Stephen.“他是个不错的小伙子。”斯蒂芬评价道。

'People aren't interested in spiritual things,' observed the actress.“人们对精神方面的东西不感兴趣。”那位女演员评论说。

The speaker observed that times had changed.演讲者说时代已经变了。

We observe that the first calls for radical transformation did not begin until the period of the industrial revolution.我们认为, 直到工业革命时期才出现了要求彻底变革的第一波呐喊。

Motorists should observe the speed limit.司机应该遵守速度限制。

The army was observing a ceasefire.军队在遵守停火协定。

American forces are observing Christmas quietly.美军正悄悄地庆祝圣诞节。