half life

英 美
  • n.半衰期(半衰变周期；半排出期)
  • half n.一半；下半场；半学年adj.一半的；不完全的adv.一半地；不完全地
  • life n.一生；生命；生活；人生

详细释义

Noun:
  1. the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)

双语例句

    1. He's been lucky all his life and has never had to find out how the other half lives.
      他享了一辈子的福，从来不知道穷人生活的滋味。

相关词汇

【邻近词汇】

halflap half half peak breadth half-bright nut half wave doubler half-carry flag half flux quantum half-day school half-sine pulse half tone reading half-word table half-value dose
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