oddity
n
1 [U] (also oddness) quality of being odd(1); strangeness 奇特; 古怪; 奇怪
I was puzzled by the oddity of her behaviour. 她行为古怪我感到莫名其妙.
2 [C] unusual act, event, person or thing 异常的行为、 事情、 人或东西
a grammatical oddity 语法上的怪异
He´s something of an oddity in the neighbourhood, ie unusual in some ways. 左邻右舍的人觉得他有些古怪.