once or twice

释义

偶尔；一两次

在例句中理解 3 句

1. How about once or twice a week?

   每周一次或两次怎么样呢？

2. Periodically, once or twice a decade, the river of krill seems to go astray.

   磷虾河似乎每十年有一次或两次周期性地出现流向错误。

3. Trying any of these once or twice might give you a nice happiness boost, but lasting happiness only comes with commitment and persistence.

   尝试一次或两次可能会让你尝到幸福的甜头，但是持久的幸福只会和决心与毅力相伴而来。