What does she mean by 'involved'? ---《friends》Season one 第二集
她所谓的”加入”代表什么?
What do you mean by…?〔你(说的……)是什么意思?〕”是个固定句型,意思就相当于“What's the meaning of…?”你只要平时多造句就会慢慢习惯的。如:What do you mean by " tofu "?= What's the meaning of "tofu"?