1.down in the dumps垂头丧气 (来源：英语博客 http://space.englishcn.com)

     The players were down in the dumps after their team lost the championship game.

     球员输掉决赛哪一场后个个垂头丧气。

     2.horse around嬉闹

     We've horsed around long enough. It's time to get to work.

     我们闹够了，该去工作了。

     3.pass something up放弃某事物

     You can't pass up this job. This kind of opportunity comes only once in a lifetime.

     你不可错过这个工作。这种机会一辈子才有一次。

     4.go whole hog全力以赴

     She went whole hog in planning he New Year's Eve party.

     她全心全力筹办新年晚会。

     5.shoo-in长胜将军

     There's no way he can lose. He's a shoo-in.

     他不会输的，他是位长胜将军。