| 单词 | biennial |
| 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 |
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