He observed every move of Ralph Spencer in detail.

他具体地观察了拉尔夫·斯宾塞的一举一动。

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He observed it perfectly, and laughed in his heart.

他观察得很仔细，在心里笑了起来。

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He said the idea came to him when he observed that the coasts of South America and Africa could fit together like two pieces of a puzzle.

VOA: special.2010.01.12

And, even Cavendish, one of the things that he observed was that hydrogen could be combusted to produce water vapor.

甚至卡文迪许都观察到了,氢气燃烧,会产生水蒸气。

麻省理工公开课 - 固态化学导论课程节选

One is that he observed when people were machining cannon barrels, a lot of heat was generated, and there was a lot of work done.

第一种说法说焦耳发现,制作加农炮筒时，会产生大量的热，同时这中间有大量的做功。

麻省理工公开课 - 热力学与动力学课程节选

"They're the ones that are supposed to be promoting tourism in New York, " he observed.

WSJ: Lost Cause in New York

There, he observed, the fish flourished in "fairly enriched environments, with lots of vegetation, " he says.

WSJ: Birds Do It, Bees Do It, Even Zebrafish Do It��Just Too Little

Saddik started the company to solve a problem he observed in his pre-AnaTango days.

FORBES: AnaTango Creates A Common Language for Business