A scientist once performed such an experiment: he put a lot of fleas into a wide mouth bottle, which he covered with a piece of transparent glass.

一位科学家做过这样一个实验：把许多跳蚤放到一个广口瓶里，瓶口用透明玻璃盖住。

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A good way to accomplish this is to fill a wide-mouthed bottle with hot water nearly to the brim, and press affected part of hand tightly against mouth of the bottle.

为了顺利取出碎片，一种方法就是向一个广口瓶中注入热水直至水位差不多要达到瓶口边缘，然后把手上受伤的部位紧紧压在瓶口处。

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Wide-mouth glass bottle;

玻璃广口瓶；

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He would shake out into his palm a handful of pills from a bottle, open his wide red mouth, and fail to swallow them.

ECONOMIST: Bip