1.每年一次
2.“once a week/month/year etc.”的变体
1.The variant of once a week/month/year etc.
1.Even if you've done time logging before, it's a good idea to return to it every few months, at least once a year.
即使你以前这样做过，最近几个月去重做也是一个不错的主意，至少一次一年。
2.Once a year, volunteers from all over the country gather on beaches, bay sides, and riverbanks to clean 'em up.
每年志愿者们从国内各地赶来聚集在海滩、河堤等地将垃圾清理干净。
3.Were I a millionaire, I would travel around the world at least once a year.
如果我是百万富翁，我每年至少周游世界一次。
4.Quality Control Department adopt the audit method of second part, at least once a year.
检查由品管部采用第二方审核的方式，每年不少于一次。
5.One is to get pidends which are usually sent to investors once a year or every three months as long as they own the stock.
一种方法是只要投资者拥有股票，通常就会一年一次或每季度一次得到派发的股利。
6.Well, he just happened to meet his soulmate in Florida, knew her for 2 days, cheated on me, and now he gets to see her once a year.
他在佛罗里达遇到了梦中情人，刚认识两天就上了床，现在准备每年跟她见一次面。
7.I certainly didn't think little ol' me who gets on a plane maybe once a year would be able to rack up enough miles to matter.
我当然不认为自己可以攒到足够的里程换返还金了，因为我可能一年才坐上一次飞机。
8.Mom said: Now, both of you can only see each other once a year. Someday, I will take you over to his house to visit him .
妈妈说：你们现在一年也就只能见到一次，等哪天我带你去他家看看吧！
9.Meet with your manager at least once a year (every 3 or 6 months is even better) to talk about your job and your performance.
见你的经理，至少每年一次（每3个月或半年就更好了），谈谈你的工作和你的表现。
10.Most people, particularly in patients with myopia, eye doctor once a year to see and do fundus examination is necessary.
一般人，特别是近视眼的患者，每年看一次眼科医师并做眼底检查也是必要的。