every dog has its day字面意思每只狗狗都有它的日子，真实含义是凡人皆有得意时。

【例句】
Very often, people say every dog has its day.
人们常说，凡人皆有得意日。

Who knows? Just remember that every dog has its day.
天知道？要记住每个人都有出运的时候。