-ty 表示抽象名称的词尾 变化型 -ety,-ity
/fə,mɪlɪ'ærətɪ; fə,mɪlɪ`ærətɪ/ n
1 [U] ~ with sth good knowledge of sth （对某事物的）熟悉, 通晓
*His familiarity with the local languages surprised me. 他对当地各种语言如此精通令我吃惊.
2 (a) [U] ~ (to/towards sb) (esp excessively) friendly informality （尤指过分地）亲密而不拘礼仪
*You should not address your teacher with such familiarity. 你不应该这样冒失地称呼老师.
(b) [C usu pl 通常作复数] instance of this; act that lacks formality 冒失; 不拘礼节的行为
*Try to discourage such familiarities from your subordinates. 不要让下属对你这样不拘礼节.
3 (idm 习语) familiarity breeds con`tempt (saying 谚) knowing sb/sth very well may lead to a loss of respect, fear, etc 亲昵生狎侮（过分亲密易生侮慢之心）.
a good knowledge of a particular subject or place
In fact his familiarity with the Bronx was pretty limited.
the quality of being well-known to you
I miss the familiarity of home.
a relaxed way of speaking to someone or behaving with someone
He treated her with the easy familiarity of an equal.
familiarity breeds contempt
an expression meaning that if you know someone too well, you find out their faults and respect them less
1. But can we blame those who looked and failed to see what Galileo saw, if we remember that to use a telescope at the limit of its powers calls for long experience and intimate familiarity with one´s instrument? 但是，如果我们想到，便用一架倍数有限的望远镜需要长期的经验和对自己仪器的熟悉程度，那么我们怎么能去责备观察了天空但没有看到伽利略所看到的东西的那些人呢？
2. His familiarity with many strange languages surprised us all. 他通晓多种不寻常的外国语, 这使我们很惊讶.