They react by adding other chemical agents at the double bond to form derivatives or polymers.

这些化合物的最大用途在于双键与其它化学物质的反应。

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Westmoreland reveals his secret, "the money's buried under a silo at the Double K Ranch, just outside of Tooele, Utah."

Westmoreland讲出了他的秘密，“那笔钱埋在犹他州Tooele市外的双k农场的一个地窖里。”

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They were travelling at a speed that was double the legal limit.

他们正以两倍于法定限速的速度行驶。

《牛津词典》

The new loans are double what China pledged at the first Forum on China Africa Cooperation three years ago in Beijing.

VOA: standard.2009.11.08

At this point, we have no other choice but to double up before going to the next energy level, 2px so we'll put a second one in the 2 p x.

在这点上我们没有其他选择,而只有双倍填充,在到下一个能级之前，所以我们放入第二个电子至。

麻省理工公开课 - 化学原理课程节选

But the string, the sentence or the words that we're displaying on the screen, previously you clicked on a little white text field and typed it in, well now you're gonna do the same thing at the keyboard but you're gonna have to sandwich it in between double quotation marks.

这些你想输出到屏幕上的字符串啊，语句啊,单词啊，或者你事先,在白色输入框中敲进去的内容，现在你们需要用键盘做同样的事情,但是你们要写在,双引号之间。

哈佛公开课 - 计算机科学课程节选

"My impression of him was that he did everything at the double and was full of nervous energy, " she said.

BBC: Film about composer Holst found

Beukes also said there had been previous incidents and "allegations of a domestic nature" at the home of the Olympic star and double-amputee runner, who is one of South Africa's and the world's most famous sportsmen and made history at the London Games last year by being the first double-amputee runner to compete at the Olympics.

NPR: Olympian Pistorius Charged With Murder

However, Woods had a double bogey six at the fourth and then found further trouble with another double bogey at the par-four seventh to drop back to one under and out of contention.

BBC: The Open 2010: Tiger Woods blames poor form on putting