How much should I leave on the table? 我得在桌子上留下多少?
I'd like to leave my room key, please. 我想讓您保管我房間的鑰匙,謝謝。
I think I left my keys here when I went out. 我好像走的時候把鑰匙落在這了。
Leave it. I'll look at it if I get a chance. 放那吧,有時間我就看。
Don't forget to fill out those forms before you go. 別忘了走之前填好那些表格。
I'll leave them on your desk before I go. 我走之前會把那些表格放在你的桌子上。