envelope [ˈenvəloʊp]

例句:

• Addressing envelopes all the time is dreary work.
  老是往信封上写地址是件乏味的工作。
  来自《权威词典》
• The envelope has been tampered with and then taped shut again.
  信封被人动过手脚，然后又用胶带封上了。
  
• Under the newspaper, atop a sheet of paper, lay an envelope.
  在报纸下面的一张纸上放着一个信封。
  
• Return the enclosed Donation Form today in the prepaid envelope provided.
  请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。
  
• Nuclear waste may be sealed in a lead nano-envelope.
  来自SA
• The official snatched the envelope out of my hands.
  来自NEWYORKER
• You should be left with an open envelope.
  来自THETIMES
• Write the address on the envelope.
  请将地址写在信封上。
  来自《权威词典》
• She opened the envelope with reluctance.
  她极不情愿地打开了信封。
  来自《权威词典》