He took the case out of her hand and set it on the floor.

他从她手中接过箱子并置于地板上。

《柯林斯英汉双解大词典》

Some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.

它们中的一些可能是顺时针旋转的，在这种情况下，根据右手定则，我们认为它们是向下旋转的。

youdao

My mother was so touched by her gesture that she decided to go back to the store and give the cashier a five-dollar bill to keep on hand in case the same happened to someone else if they didn't have enough money for all of their groceries.

我母亲被她的举动感动了，她决定回到店里，给收银员一张五美元的钞票，让他放在手边，以防别人在没有足够的钱支付所购买的东西时发生同样的情况。

youdao

"It does not really matter because in the best case scenario we have today,we will still have a moderate virus that is projected to cause several million deaths extra deaths than the usual influenza annual mortality, which means that even in the best-case scenario, we do have an emergency on our hand,"

VOA: standard.2009.09.04

And some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.

而另一些电子则是在顺时针自旋，在这种情况下，根据右手定理,我们会以为它是在向下转。

麻省理工公开课 - 固态化学导论课程节选

The company has to have enough money on hand to pay out in the case of default.

保险公司必须储备足够的资金,以应对突发的保险事故

耶鲁公开课 - 金融市场课程节选

McGee, the famous hairy hand case.

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Nonetheless, they had a cellphone in hand in case of emergencies and to call for guidance about how much to tip.

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The smartest course is to fire off a letter demanding recission within three years and keep it on hand in case they get in trouble.

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