C1 [ C ] an action that is done to prevent something unpleasant or dangerous happening预防,预防措施
a polite way of referring to contraception (= methods that prevent a woman becoming pregnant)(委婉的说法)避孕
More examples
The inquiry into the disaster damns the company for its lack of safety precautions.
Safety precautions are observed as a matter of course.
Millions of travellers fail to take even the most elementary of precautions.
Doctors are legally obliged to take certain precautions.
The tighter security precautions include video cameras in the city centre.
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