同义词是at work,意思是在工作,例如:

1、She's always grumbling to me about how badly she's treated at work.她总是向我抱怨她在工作中如何受亏待。

2、She claims she has been sexually harassed at work.她声称在工作中受到性骚扰。

3、We don't usually give presents to people at work.我们一般不给在职职工送礼。