18. Turning in 上床睡觉
A： I guess I'll turn in， Bob. It's been a long day.
B： I've got a chapter to read for tomorrow， so I'll be up for a while yet. I'll turn off thd heat and lock thd door before I go to bed.
A： Okay. What time are you getting up tomorrow？
B： Oh， the usual time. No， wait a minute. Make sure I'm up before you go to work， will you？ I've got a quiz at ten. It wouldn't hurt to read over my notes.
A： I'll try， but when seven o'clock comes around， don't forget you asked me to wake you.
B： Good night， Joe.
Turn in 上床睡觉
Be up for a while 等一会儿（再睡）
It wouldn't hurt to-it would be wise to come around 到来