名詞 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
   同義詞：bismuth, Bi, atomic number 83

bi- 或 bin-
pref.（前綴）

Two:
二：
例句：
biform.
二形的

Both:
兩者都的：
例句：
binaural.
兩耳的

Both sides, parts, or directions:
雙邊、雙方或雙向的：
例句：
biconcave.
雙凹的

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

Usage Problem Occurring twice during:
【用法疑難】 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:
為達到穩(wěn)定而需要含有兩個化學元素或兩個基團的：
例句：
bicarbonate.
碳炭氫鹽

Containing two chemical atoms, radicals, or groups:
含有兩個原子、根或基團的：
例句：
biphenyl.
聯(lián)二苯

來源：
Latin bis, bi- [twice,]
拉丁語 bis, bi- [兩次，]
bono [two by two] * see dwo-
bono [兩個兩個的] *參見 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 意為.每兩個月一次.和.每兩個星期一次。. 如表示.一個月兩次.或.一個星期兩次.，應該用semimonthly 和 semiweekly。 因在區(qū)別上存在很大混亂，建議作者盡可能用every two month 或 twice a month 的表達法代替。 但當用作名詞表示.每兩個月出版一次的刊物（雙月刊）.時，不可避免地要使用含有bi- 的詞

bi-
bi- 2
pref.（前綴）
Variant of bio-
bio-的變體