形容词每半个月一次的
副词每半月一次，每月二次
名词半月刊
noun
1. a periodical that is published twice each month (or 24 issues per year)
adj
1. \u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
1. occurring twice a month
e.g. a semimonthly publication
Synonym: bimonthly
adv