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N-VAR
行為；舉止
People's or animals' behaviour is the way that they behave. You can refer to a typical and repeated way of behaving as a behaviour .
例句
Make sure that good behaviour is rewarded.
確保懿行得到嘉獎。
...human sexual behaviour...
人類性行為
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N-UNCOUNT
（科學領域中的）運動方式，活動方式，性能，特點
In science, the behaviour of something is the way that it behaves.
例句
It will be many years before anyone can predict a hurricane's behavior with much accuracy.
要能夠相當準確地預測出颶風的特性尚需多年。
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PHRASE
極力表現；盡量做到舉止得體
If someone is on their best behaviour, they are trying very hard to behave well.