分词翻译
寿命的英语翻译：
life; life-span; longevity
【计】 live time
【医】 duration of life; life; span life; tau.保证的英语翻译：
guarantee; assure; certify; warrant; ensure; pledge; secure; assurance
guaranty; surety; warranty
【经】 assurance; endorsement; guarantee; guaranty; recognizance; scure
secure; security; surely周期的英语翻译：
cycle; period; wheel
【计】 C; cycle time; loop cycle; periods
【化】 period
【医】 cycle
【经】 cycle; period
