| 单词 | semiannual |
| 释义 | semiannual —semiannually, adv. /sem'ee an"yooh euhl, sem'uy-/, adj. 1. occurring, done, or published every half year or twice a year; semiyearly. 2. lasting for half a year: a semiannual plant. [1785-95; SEMI- + ANNUAL] Usage. See bi-1. |
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