例句與造句

1. " you ' ve heard of a smoking gun ? this the squirting gun , " said kenneth edgett of nasa contract firm malin space science systems in san diego , california
   “你一定聽說過冒著煙的槍那就是射擊過的槍（指確鑿證據(jù)） 。 ”
2. It's difficult to find contracting firm in a sentence. 用contracting firm造句挺難的