By labeling the arsenic with radioactivity, the researchers were able to conclude that arsenic atoms had taken up position in the microbe's DNA as well as in other molecules within it.

研究人员利用射线发现，砷原子不仅已经出现在这些细菌的DNA中，而且还出现在了其他分子中。

youdao

Troops took up a defensive position around the town.

部队在全城采取了守势。

《牛津词典》

He took up his position by the door.

他到门边就位。

《牛津词典》

Mr.Thaksin arrived Tuesday in Phnom Penh to take up a position as an economic adviser to Cambodian Prime Minister Hun Sen.

VOA: standard.2009.11.11

And if we do, in fact, hit it with light to get the electrons off, it will go back to the straight up in position, or if it gets knocked hard enough it does that, too.

而且如果我们这么做，事实上，用光轰击它以逐出电子，它就会在原位置沿直线返回，或者如果它被撞击的足够猛烈,也会出现上述现象。

麻省理工公开课 - 化学原理课程节选

The similes work not to sew everything up but make it impossible for us to maintain anything like the official position on a moral distinction between heavenly good and satanic evil.

这些比喻不是为了简单的拼凑，而是让我们不能,维持住任何天堂之善与撒旦之恶之间的,清晰的官方界限。

耶鲁公开课 - 弥尔顿课程节选

Eventually Baron Cohen emerges and we take up position on a hotel balcony one sunny afternoon in Cannes.

BBC: Am I Sacha Baron Cohen's next target?

In 1862, the siege of the Confederate city of Vicksburg, Mississippi, began when Union naval forces took up position off of the city.

CNN: Sunday,

The 2, 600 troops, part of the Allied Command Europe Rapid Reaction Force (AARC) headquartered in Rheindahlen, Germany, could be ready to take up position as early as Sunday.

CNN: NATO approves initial Bosnia force