1. You must be tired, I assume¹. 我猜你一定是累了。

 2. It's almost eleven o'clock. 快十一点了。

 3. I really must be going now. 我必须得走了。

 4. I'll miss our pleasant talks when you leave. 你走后我会怀念这次愉快的谈话。

 5. Good night, sleep well. 晚安，睡个好觉。