biannual

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槼檢查。

2. biannuallyADV 每年兩次地[ADV after v]

Only since 1962 has the show been held biannually. 從1962以後，這個節(jié)目才開始每年擧行兩次。