我认为应该少吃糖.（少摄入糖类）
我们不一定要上交练习本.
对这类游戏我已经不感兴趣了.我要的是解释句子。不要翻译1. I think we should take less sugar.2. We may or maynot hand in the excercise books. 3. I'm no longer interested in this kind of games.第二句怪怪的It is up to us to hand in the excercise book or not.交不交作业我们自己说了算。.....或者We needn't hand in the excercise books.We don't need to hand in the excercise books.我们不需要交练习本。