Remove the batteries when they become weak or when the unit is not in use for extended periods. This will prevent damage to the unit from battery leakage at such times.

如电池耗尽，或长时间不使用本机，请及时取出电池，以免本机因电池漏液而受到损坏。

youdao

They often become unconscious as their body gets too weak to fight the infection.

那个时候患者虚弱的身体一般不再能够抵御，他们会失去知觉。

youdao

As energy is supplied to the body at a slower and slower rate, dieters gradually become so weak that they can do nothing.

由于以越来越慢的速度给身体供应能源，这些节食的人的身体就逐渐变得非常虚弱，以致弱到什么事都不能做的程度。

youdao

They also can become weak, expel material from the stomach, and suffer pain in the head or muscles.

VOA: special.2010.04.20

The reason why the linings of nuclear reactors degrade is that metals can become brittle and weak when they are exposed to radiation.

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They are prone to developing osteoporosis, a disease where bones become weak and are more likely to break.

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"The priorities of this trust will be to work with the private sector and regulators to identify institutions that are weak and take remedies to strengthen them before they become insolvent, " he said.

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