n. 小心( caution的名词复数 ); 谨慎; （对危险或风险的）警告; （警察向犯轻罪的人发出的）警告

v. 警告, 提醒, 劝…小心( caution的第三人称单数 )

n the trait of being cautious; being attentive to possible danger

n a warning against certain acts

n judiciousness in avoiding harm or danger

n the trait of being circumspect and prudent

v warn strongly; put on guard