precaution

pri'kɒ:ʃәn

四级六级考研托福雅思 Collins 2

n. a precautionary measure warding off impending danger or damage or injury etc.
n. the trait of practicing caution in advance

n. 预防, 留心, 警戒
vt. 预先警告

Collins 星级

5,945

BNC 频率

7,088

使用频率

precaution 由前缀 pre-（在……之前）和词根 caution（小心、谨慎）组成，意思是事先采取小心措施。

例句

1. Take a precaution by wearing a helmet when riding a bike.

骑自行车时戴上头盔是一种预防措施。

2. The doctor advised some precautions to avoid getting sick in winter.

医生建议了一些预防措施，以避免在冬天生病。

3. Always keep a first aid kit at home as a precaution.

在家中始终备有急救箱作为预防措施。