half life
英
美
- n.半衰期(半衰变周期；半排出期)
详细释义
Noun:
-
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
- 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
- half-life 半衰期
【近义词】
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