| 释义 |
half-lifeUK:*/ˈhɑːflaɪf/US:(haf′līf′, häf′-) 主要翻译 half-life, half life n (radioactivity decrease) (物理)半衰期The half-life of uranium-238 is about 4.47 billion years. half-life, half life n (finance: principal decrease) (金融)半衰期The time taken to repay half the mortgage debt is referred to here as the half-life of the mortgage. |