1
- a peculiar behavioural habit古怪举动; 怪癖：
they accepted her attitude as one of her little quirks.
他们认为她的态度不过是她的一种小怪癖, 没有介意。
1.1
- a strange chance occurrence偶发事件; 怪事; 巧合：
a strange quirk of fate had led her to working for Nathan.
她鬼使神差地竟为内森工作了。
1.2
- a sudden twist, turn, or curve急转; 急弯：
wry humour put a slight quirk in his mouth.
冷嘲式的幽默使他的嘴忽然略微一歪。
2
- Architecture an acute hollow between convex or other mouldings【建筑】狭凹槽, 深槽, 沟。
no obj.
1- (of a person's mouth or eyebrow) move or twist suddenly, especially to express surprise or amusement（人的嘴巴或眉毛）突然翘起, 扭曲。
1.1
- with obj. move or twist (one's mouth or eyebrow) in such a way突然翘起, 扭曲（嘴巴或眉毛）。
派生词
quirkish
adjective词源
early 16th cent. (as a verb)： of unknown origin. The early sense of the noun was 'subtle verbal twist， quibble'， later 'unexpected twist'.