bi-

名词 bi-:

1. a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
   同义词：bismuth, Bi, atomic number 83

bi- 或 bin-
pref.（前缀）

Two:
二：
例句：
biform.
二形的

Both:
两者都的：
例句：
binaural.
两耳的

Both sides, parts, or directions:
双边、双方或双向的：
例句：
biconcave.
双凹的

Occurring at intervals of two:
每二的（发生一次）：
例句：
bicentennial.
每二百年的

Usage Problem Occurring twice during:
【用法疑难】 每…二次的：
例句：
biweekly.
每周二次的

Containing twice the proportion of a specified chemical element or group necessary for stability:
为达到稳定而需要含有两个化学元素或两个基团的：
例句：
bicarbonate.
碳炭氢盐

Containing two chemical atoms, radicals, or groups:
含有两个原子、根或基团的：
例句：
biphenyl.
联二苯

来源：
Latin bis, bi- [twice,]
拉丁语 bis, bi- [两次，]
bono [two by two] * see dwo-
bono [两个两个的] *参见 dwo-

Bimonthly and biweekly mean .once every two months. and .once every two weeks. . For .twice a month. and .twice a week,.the wordssemimonthly and semiweekly should be used. Since there is a great deal of confusion over the distinction,a writer is well advised to substitute expressions likeevery two months or twice a month where possible. However, used as nouns to denote .a publication that appears every two months,.the words withbi- are unavoidable.
Bimonthly 和 biweekly 意为.每两个月一次.和.每两个星期一次。. 如表示.一个月两次.或.一个星期两次.，应该用semimonthly 和 semiweekly。 因在区别上存在很大混乱，建议作者尽可能用every two month 或 twice a month 的表达法代替。 但当用作名词表示.每两个月出版一次的刊物（双月刊）.时，不可避免地要使用含有bi- 的词

bi-
bi- 2
pref.（前缀）
Variant of bio-
bio-的变体