我们周一见——我是说周二。

Let's meet on Monday – ___I ___mean Tuesday.

晚餐七点开始——我是说，如果你不忙的话。

Dinner is at seven – ___I ___mean for ___I ___mean if you're not busy.

我需要买一本书——我是说笔记本。

I need to buy a book – ___I ___mean notebook.