每年一次
... annually 每年一次地 biannual 每年两次的 biennial 每两年一次的 ...
一年一次
... Annually(一年一次) Semi-annually(半年一次) Quarterly(每季一次) ...
年度
annually(年度的), 此释义来源于网络辞典。
每年;一年一次
Annual or yearly is something that happens once a calendar year. "Annual" may be an abbreviation for:Annual may also refer to: