cover

• His business was a cover for drug dealing .
  他的商行是进行毒品交易的幌子。
• The business is a cover for unlawful activity .
  以经商为幌子从事非法活动。
• The children were covered in mud from head to toe .
  孩子们全身沾满了污泥。
• Please cover the typewriter after use .
  用完后请把打字机罩好。
• Are you going to cover the planking with carpet ?
  你打算在地板上铺地毯吗？
• By sunset we had covered thirty miles .
  到日落的时候，我们已走了三十英里。
• The expedition covered a lot of ground .
  探险队到过很多地方。
• The wings of a crow can never cover up the sun .
  乌雅的翅膀决不能遮住太阳。
• I hope my foreign exchange allowance will cover it .
  但愿我的外汇限额够用。