延長的英文：
to extend; to prolong; to lengthen

• This will extend the life of the drive.
  这样会延长驱动装置的寿命。
• Extended consciousness was his line.
  延展清醒意识是他的本行。
• They extended their citizenship cautiously but steadily.
  他们慎重而稳步地扩大授与公民权的范围。

• Hospitalization may be prolonged.
  住院期可能延长。
• addition or extension that prolongs sth
  增加或延长的部分.
• Prolonged negotiation was not desirable.
  拖长了的谈判并不是大家所想要的。

• To save time is to lengthen life
  节约时间就是延长生命
• As winter gave way to spring the days began to lengthen.
  冬去春来时，白天开始长了起来。
• As winter gave way to spring the days began to lengthen
  冬去春来时，白天开始长了起来。