turncoat['tɜ:nkəʊt]

例句参考:

• Some of the workers began to see him as aturncoat.

  有些工人开始认为他是一个叛徒。

• He was labeled as aturncoat.

  人们称他为叛徒。

• You're aturncoat, a time-server, a shameful, unscrupulous opportunist.

  你是一个变节分子，是个趋炎附势之徒！是个肆无忌惮不要脸的机会主义者!