| 单词 | triannual |
| 释义 | triannual —triannually, adv. /truy an"yooh euhl/, adj. 1. done, occurring, issued, etc., three times a year. 2. triennial. n. 3. a triannual publication, contest, etc. 4. triennial. [1630-40; TRI- + ANNUAL] |
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