have something on your plate idiom informal
有（很多工作）要做
to have something, usually a large amount of important work, to deal with
She's got a lot on her plate - especially with two new projects starting this week. 她有很多工作要做——特别是这个星期她又开始了两个新项目。
The aid agencies have (more than) enough on their plate without having unnecessary visitors to take care of. 即使不接待那些不必要的来访者，援助事务所也已经忙得不可开交。