UK When children play up, they behave badly:UK When children play up, they behave badly:
The boys have been playing up at school again.
If someone, especially a child, acts up, they behave badly.If someone, especially a child, acts up, they behave badly.
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to sometimes behave badlyto sometimes behave badly
有时会表现很坏 He\'s no angel but he can\'t be blamed for everything that has happened. 他有时会表现很差，但也不能把发生的一切都归咎于他。
to behave badly:to behave badly:
The little girl was acting up, so her mother took her out of the restaurant.
If a person, especially a child, acts up, they behave badly:If a person, especially a child, acts up, they behave badly:
Sophie got bored and started acting up.
B2 disapproving If an adult is childish, they behave badly in a way that would be expected of a chilB2 disapproving If an adult is childish, they behave badly in a way that would be expected of a chil
He wasn\'t enjoying the occasion so he thought he\'d spoil it for everyone else - it was very childish of him.
to behave badly and show no respect for authorityto behave badly and show no respect for authority
不受管束;不听指挥
B2 When children are naughty, or their behaviour is naughty, they behave badly or do not do what theB2 When children are naughty, or their behaviour is naughty, they behave badly or do not do what the
（儿童）淘气的，调皮的，不听话的 Now that\'s naughty - don\'t throw food on the floor! 真淘气——你不能把食物扔在地上！
always loving someone, even if they behave badlyalways loving someone, even if they behave badly
宠溺的，永远爱（某人）的 He plays Edna\'s ever-loving husband, Wilbur. 他扮演威尔伯，那位无论爱德娜做什么都永远爱她的丈夫。
If a person, especially a child, acts up, they behave badly.If a person, especially a child, acts up, they behave badly.
（尤指孩子）捣乱，表现不好 Sophie got bored and started acting up. 苏菲感到没意思，就开始调皮捣蛋起来。
