语气非常随意。用于朋友之间。在给同事发邮件时如果你想表现得非常随和，也可以使用，但可能有听起来略不专业的风险。

Very casual. Used between friends. Can be used between coworkers if you want to appear very casual, at the risk of sounding unprofessional.

youdao

语气非常随意。用于朋友之间。在给同事发邮件时如果你想表现得非常随和，也可以使用，但可能有听起来略不专业的风险。

Very casual. Used between friends. Can be used between coworkers if you want to appear very casual, at the risk of sounding unprofessional.

youdao