Shyness is a common personality trait among young children.

害羞是小孩子们共同的性格特征。

youdao

Borderline personality disorder (BPD) is the most common personality disorder.

边缘性人格障碍是一种最常见的人格障碍。

youdao

Although the dark triad personality type appears to be universal in human society, having been identified in 57 countries, it does exact real costs - otherwise bad boys would be more common.

虽然黑暗人格在人类社会中广泛存在，已经在57个国家得到确认，不过那可不是易如反掌轻松惬意的——否则坏男孩们就能满天飞了。

youdao

Campaigners are targeting what many say is an increasingly common practice - deploying the language of clinical diagnosis to describe everyday personality traits.

BBC: Magazine

Just as important, the different humans who knew a particular animal agreed about its personality to a degree similar to that found when several people describe a human friend they have in common.

ECONOMIST: Animal behaviour