当你不确信事情可不可以做，先获得许可。这样可以避免日后长时间的痛苦。

When you have any doubt doing something, ask permission first. It can save you from many hours of grief later.

youdao

当你不确信事情可不可以做，先获得许可。这样可以避免日后长时间的痛苦。

When you have any doubt doing something, ask permission first. It can save you from many hours of grief later.

youdao