ket单词打卡学习：bi(bin-)

bi(bin-) [L]= two; twice; doubly

常用词bicycle包含一个前缀bi-，它来源于拉丁语bis，它的意思是twice。bi-最早出现在从古代法语或拉丁语引进的外语中，是一种只与拉丁词根结合的原始词缀。16世纪之后，bi-成为英语中的衍生词缀，可以与名词、修饰词和副词结合形成新词(包括生物学和化学术语)，表示two，double，having two，in two ways等意思。bi-阅读个别单词[bɪ](例如bigamy)，一般阅读。 [baɪ] 。bin-它是bi-的异体，只出现在元音字母开头的词根中。

常见单词

首先介绍几个bi-(bin-)原生派生词开头：

bicameral[baɪ'kæm(ə)r(ə)l]

【bi-= two二；camer= chamber室；-al= of...的】→ of two chambers 两室的

a. having two legislative chambers 两个法院，两个法院。

△The United States Congress is bicameral.

两院制是美国国会。

biennial[baɪ'enɪəl]

【bi-= two二；enni= year年；-al= of...的 】→ of two years 两年的

a. lasting two years；once every two years 持续两年；两年一度的

△He has finished his biennial postgraduate course.

他已经完成了两年制研究生课程。

bigamy['bɪgəmɪ]

【bi-= two 二；gam= marriage 婚姻；-y= the state of...的状态】→ the state of keeping two marriages at the same time同时保持两种婚姻状态。

n. the practice of having two wives or two husbands at the same time 重婚

bigamist n.犯有重婚罪的人

bigamous adj. 重婚者，犯重婚罪

△The maximum punishment for bigamy is said to be two mothers-in-law.

有人说，重婚者最大的惩罚是-2个岳母。

bilateral [baɪ'læt(ə)r(ə)l]

【bi-= two二；aur= ear耳；-al= of...的】

a.① of or for two ears 两耳的

②having two speakers to give a three-dimensional auditory effect 双声道，环绕声

△a bilateral agreement; bilateral negotiations.

双边协议；双边谈判

以下是由bi-和单词组合而成的几个派生词：

biplane['baɪpleɪn]

【bi-= having two 有两种...是的；plane飞机→ a plane having two sets of wings 飞机上有两个机翼

n. an aircraft with two sets of wings，one above the other 双翼飞机

biannual[baɪ'ænjʊəl]

【bi-= 两次twice；annual a.一年的】

a. twice in a year 每年两次的

△But at the second of London's biannual fairs, which ran from September 13th to 17th, that was starting to change.

但从9月13日到17日，这次时装展作为伦敦今年举办的两场比赛中的第二场，开始发生一些变化。

bisexual [baɪ'seksjʊəl]

【bi-= on both sides 两个方面；sexual a.性别的】→ having both sexes 有双性的

a. possessing qualities of both sexes 两性，雌雄同体

△A critical task of adulthood is establishing one's sexual orientation as heterosexual, gay, lesbian, bisexual, or transgendered.

成年人的关键之一就是建立自己的性取向：异性恋、男同性恋、女同性恋、双性恋或变性。