let out 这两个意思你会用吗？

1) let out 释放，让...出去

e.g. My mom won’t let me out until three. /I won’t be let out until three. 

e.g. Your dogs are going crazy. You should let them out. 

2) let out 下课；放学

e.g. My piano class lets out at 4:15.

e.g. When does your school let out for the summer?