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1·She always writes me once a month, if only to scold me because I haven't answered her last letter yet.

她总是一个月写一封信给我，即使仅仅是为了责备我还没有回她的上一封信。《柯林斯英汉双解大词典》

2·I get my day out once a month same as th' rest.

我和其他人一样每个月有一天的休息时间。

3·While 70 percent of 8th and 10th grade students used to go to the movies once a month or more, now only about half do this.

过去，70%的八年级和十年级学生每月看一次电影，甚至更多，但现在只有约一半的人这样做。

4·Steven visited his grandma once a month.

史蒂文每月看望奶奶一次。

5·Once a month, he took one small drop.

他每次服用一小滴，每月一次。

6·Just take one small drop of the medicine once a month.

每月只服一小滴这种药。

7·Peter said joyously, I do like moving! I wish we moved once a month.

彼得兴高采烈地说：“我喜欢搬家！我希望我们每个月搬一次家。”

8·The FUF's tree experts make house calls to every newly-planted street tree once a month.

“城市森林之友”（FUF）的树木专家每月对每棵新种植的街道树木进行一次“出诊”。

9·In summer, we like to hang out at the beach and go surfing at least once a month.

夏天，我们喜欢在沙滩上闲逛，每个月至少冲一次浪。

10·Today, there are about 2,000 Repair Cafes around the world with meetings usually taking place once a month.

如今，世界各地大约有2000家修理咖啡馆，通常每个月举办一次聚会。