Boys at that age should be able to explore and go off on their own, go on bike rides, get into mischief.

那个年龄的男孩应该可以自己出去闯，也可以骑车出游，还可以调皮捣蛋。

柯林斯例句

He is a clever boy but apt to get into mischief.

他是个聪明却很调皮的孩子.

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