OnUnload - This function is called just before a page is being switched out.

onUnload—此函数只在页面被关闭前调用。

youdao

And never dress as if the jeans had been switched out from formal suit pants at the last minute: No fancy French-cuffed shirts with jeans, he advises.

他建议说，千万不要显得好像最后一刻才脱下正式的套装西裤换上牛仔裤：不要用配西裤的花哨法式袖口衬衫搭配牛仔裤。

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And we switched out of El Nino into what we call a La Nina situation, which keeps the jet stream really out of the path of these westward-moving hurricanes.

我们已从厄尔尼诺现象转而进入拉尼娜。这些飓风便可顺利西进，没有什么气流能阻挡它们。

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There is some improvement that that will represent, but not nearly as much as if the trans fat is switched out with a healthier fat.

这确实是进步了一些,但进步的程度不如,把反式脂肪换成某种更为健康的脂肪

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now the fact is that the Trans fats can get switched out of foods in a pretty easy way by the industry, because now they're doing it pretty routinely like all the restaurants in New York are having to do it, for an example.

实际上剔除食物中的反式脂肪,对食品业而言易如反掌,因为他们如今和纽约的所有餐厅一样,都对此习以为常

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But just to point out the confusion can be we've actually switched what the question is here.

他们有这些幻灯片的拷贝,这里要指出容易混淆的地方是。

麻省理工公开课 - 化学原理课程节选

After ordering, he briefly switched out of vacation mode to check his e-mail on his phone.

CNN: Why we can't unplug on vacation

Circuit boards are double-insulated to protect against power surges, and there are backup power supplies that can be switched out on the fly.

FORBES: Technology

Notes: The game ball got switched out in the second quarter after it went into the stands and a drink was spilled on it.

NPR: Thunder Blast Rockets 120-91 In Game 1