柯林斯詞典biannual /ba???nj??l/ 1. ADJ A biannual event happens twice a year. 每年兩次的 You will need to have a routine biannual examination. 你需要做一年兩次的常規(guī)檢查。2. biannuallyADV 每年兩次地[ADV after v] Only since 1962 has the show been held biannually. 從1962以后，這個(gè)節(jié)目才開始每年舉行兩次。 返回 biannual劍橋詞典happening twice a year 一年兩次的，一年兩度的；半年一次的 The committee has just published its biannual report . 委員會(huì)剛剛公布了半年報(bào)告。 比較annual adjective biennial adjective 返回 biannual