She lets out rooms to students.

　　她把房間出租給學生。

　　When she gets angry with her boyfriend, she really lets rip at him.

　　當她生男朋友氣的時候，她真的對他破口大罵。

　　She speaks French very fluently, but her pronunciation lets her down.

　　她法語講得很流利，但美中不足的是發音不大好。

　　The traffic in this city never lets up, even at night

　　這個城市道路上的車輛從來就沒少過，甚至晚上也不例外。

　　This option lets you create new files or directories.

　　用這個選項你可以創建新的文件或目錄。