英语词汇“half-life”的读音、翻译、释义、用法及例句-出国留学网

词汇	half-life
释义	ˈhalf-life noun [C] (technical术语) the time taken for the RADIOACTIVITY (= the amount of harmful rays sent out when an atom breaks up) of a substance to fall to half its original value （放射性物质的）半衰期
随便看	self-employed self employed self-employeds self-employment self-emptiness self-emptinesses self-emptying self-energies self-engrossed self-enhancement self-enhancements self-enjoyment self-enjoyments self-enriching self-entertaining self-entertainment self-entertainments self-erected self-escape self-escapes self-essence self-essences self-esteem self esteem self-esteems

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