semiannuallyWiktionary 原文英美构词拆解semisemi-前缀annuallyannually词干semi-half · partial, incomplete也可拆解为semisemi-前缀annualannual词干ly-ly后缀semi-half · partial, incomplete-lyUsed to form adjectives from nouns, the adjectives having the sense of "词源说明From semi- + annually or semi- + annual + -ly.释义副词adverb1In a semiannual manner, twice yearly.