[译] 在寒冷月的人们容易感冒。
[误] In cold months, people are apt to colds.

[正] In cold months, people are liable to colds.
[注] be apt to ( = having a tendency, likely to do sth.) 之后跟原形动词，不跟名词。如：Cast iron is apt to break. 铸铁易断。be liable to ( = have a tendency to, be likely to do sth.) 之后除了跟名词外，也可以跟动词不定式。如：Every man is liable to error. 人人都会犯错误。/This test tube is liable to break. 这种试管容易破碎。