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Neither of them is telling the whole truth. Invariably, they keep something back.
他俩谁也没把全部实情都说出来。他们总是要隐瞒些什么。
《柯林斯高阶英汉双解学习词典》
7、
The fighter accepted money to keep himself back from winning the fight.
这位职业拳击手拿了钱,这阻碍了他在这场拳击赛中的获胜.
《简明英汉词典》
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The best way to keep babies off sugar is to go back to the natural diet and eat lots of fresh fruit.
避免婴儿摄入食糖的最好办法是让其回归自然的饮食，多吃新鲜水果。
《柯林斯高阶英汉双解学习词典》
