a piece of

• What a piece of work is a man !
  人啊真是一个杰作！
• You must adopt at least a piece of a southern principle .
  你至少得遵守一点南方的规矩吧。
• We decided on a dash across a piece of open land .
  我们决定从一块没有遮拦的空地上跑过去。
• A piece of china breaks easily .
  瓷器容易打碎。
• At the same time a piece of sulphur slipped out of his hand .
  同时有一块硫磺从他手中滑下。
• Tom is a piece of caustic .
  汤姆真爱挖苦人。
• He has bought a piece of land with a view to building a house .
  他想建房子，所以买了块地皮。
• The kidnapper strangled the child with a piece of string .
  绑票的人用一根绳子把这孩子勒死了。
• He received a piece of flesh at the expense of his friend .
  他以牺牲朋友为代价，也分得一块肉。
• Don't worry, you'll pass the exam; it's a piece of cake .
  别着急，你考试一定会及格的；那很容易。