单词
half-life
读音
ˈhæf laɪf
美式
英式
词根
无
释义
n. [核] 半衰期 [ 复数 half-lives ]
例句
Business opportunities have a half-life, just like uranium.
商业机会有半衰期，就像铀一样。
However, if the half-life is increased, the situation changes.
然而，如果半衰期增加，情况会改变。
Radioactive iodine has a half-life of eight days and decays naturally within weeks.
放射性碘的半衰期为八天，几周内自然衰变。
Business opportunities have a half-life, just like uranium.
商业机会有半衰期，就像铀一样。
However, if the half-life is increased, the situation changes.
然而，如果半衰期增加，情况会改变。
Radioactive iodine has a half-life of eight days and decays naturally within weeks.
放射性碘的半衰期为八天，几周内自然衰变。
强化记忆
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看视频学发音
Sethe’s daughter Denver remains in the house,but the pair live a half-life.Shunned by the wider community,
It's basically the duration,essentially, the half-life of the negative emotion.There's a huge difference between regret and disappointment.
Caffeine, for the average adult,will have what we call a half-lifeof about five to six hours.
when last year, I returned to Israel to write of the crash,and the book I then wrote, "Half-Life,"was nearly complete when I recognized
I think most Republicans are breathing a sigh of relief today.DB: The half-life of that is short.GC: Right -- I was just going to say, until Twitter happens again.
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