To keep healthy, there are at least three things we can do every day.23. 那就是(说)...;亦即…That is to say, .= That is, .=Namely, ...例：我们生活需有规律。也就是说，早睡早...
e.g. Don’t worry, you are in the big time now. 2)according to:按照,根据 e.g. They were commended or criticized according to their work. according as:随……而定 e.g. The th...
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