英语词汇half-life的意思、用法及释义-英汉双解词典

单词	half-life
释义	half-life n time taken for the radioactivity of a substanceto fall to half its original value 半衰期（某物质的放射性元素由原有量衰减到一半所需的时间）.
随便看	keeper keeping keep off keep on keep oneself/sb from sth/doing sth keep out keepsake keep sb in keep (sb/sth) away (from sb/sth) keep sb under keep sth back keep to sth keep up keg keg beer kelp kelvin ken kennel kepi kept kept woman kerb kerb-crawling kerb drill

英汉双解词典包含38652条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。