I can't abide his abnormal behaviour.

我不能容忍他变态的行为。

youdao

Did anyone notice his abnormal behaviour?

有没有人注意到他反常的行为？

youdao

Abnormal psychology is the branch of psychology concerned with the abnormal behaviour and functioning of organism.

变态心理学是研究有机体的变态行为和功能的心理学分支。

youdao

Researchers from Bristol University studied 77 animals in 13 zoos and found that almost half of the elephants displayed abnormal behaviour.

BBC: Elephants 'die earlier in zoos'

The abnormal behaviour declined and the chimps began to play together.

BBC: Lab chimps successfully treated with anti-depressants

But Dr Kranendonk found that the abnormal behaviour actually increased.

BBC: Lab chimps successfully treated with anti-depressants