bum out

• [美国俚语]使烦恼，使恼火；令人烦躁(或失望)；令人讨厌(或作呕)：

  She really bummed me out.

  她真令我烦恼。

  It really bummed me out that he could have helped and didn't.

  他能否帮忙真令人烦躁。