envelopes ['envəloʊps]

例句:

• Catherine put all the envelopes aside unopened.
  凯瑟琳把所有信件放在一旁，全都未启封。
  
• A courier was despatched with two sealed envelopes.
  信使受命递送两封封讫的信。
  
• writing paper and envelopes
  信纸和信封
  
• The envelopes...were franked 'STUDENT'S EXERCISE'.
  来自F. Raphael
• Energy shocks radiating between quanta envelopes is perceived as light.
  来自SA
• It gives no indication of how many viruses have lipid envelopes.
  来自SA