Let's attack one problem at a time.

　　咱們一次全力處理一個(gè)問題。

　　It is important not to let things get out of perspective.

　　重要的是不要把事情輕重倒置。

　　Let us approach the subject from a different direction.

　　咱們從一個(gè)不同的角度來探討這個(gè)題目吧。

　　Let me know if you have any problems.

　　你若有困難就告訴我。

　　It is important not to let production levels fall.

　　重要的是別讓產(chǎn)量滑落。