behaviour

1. N-VAR 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. 行为

Make sure that good behaviour is rewarded. 确保良好的行为受到嘉奖。

...human sexual behaviour. …人类性行为。

2. N-UNCOUNT In science, the behaviour of something is the way that it behaves. (科学领域) 运动表现

It will be many years before anyone can predict a hurricane's behaviour with much accuracy. 要高精确度地预测飓风的表现尚需要许多年。

3. PHRASE If someone is on their best behaviour, they are trying very hard to behave well. 尽全力好好表现

The 1,400 fans were on their best behaviour and filed out peacefully at the end. 1400名支持者尽全力守着规矩，结束时排成队平静地离场。