| 释义 |
biennial /baɪeniəl/ adjective [usually before noun] happening once every two years 两年一次的◆a biennial convention 每两年召开一次的大会 ▸ biennially adverb ➡ annual , biannual ☞ biennialbiennial/baɪˈeniəl ||; baɪˈɛnɪəl/adj happening once every two years 两年一次的 bi·en·ni·al /baɪ`ɛnɪəl; baɪˈeniəl/adjhappening once every two years 两年一次的 |