two

来自古英语 twa,二，缩写自 twegen,二，来自 Proto-Germanic*twa,二，来自 PIE*dwo,二，词 源同 binary,double.衍生前缀 bi-,di-,dia-,dis-.

two

two: [OE] Two is an ancient word, traceable right back to Indo-European *duwo. Amongst its other descendants were Greek dúo, Latin duo (source of English deuce, double, dual, duet, duo, etc), Russian dva, and Welsh dau. In the Germanic languages, aside from English, it has evolved into German zwei, Dutch twee, Swedish två, and Danish to. Two represents the Old English feminine and neuter forms twā; the masculine twegen has become twain.
=> between, deuce, double, dual, duet, duo, twain, twelve, twenty, twice, twig, twilight, twin, twist

two (adj.)

Old English twa "two," fem. and neuter form of twegen "two" (see twain), from Proto-Germanic *twa (cognates: Old Saxon and Old Frisian twene, twa, Old Norse tveir, tvau, Dutch twee, Old High German zwene, zwo, German zwei, Gothic twai), from PIE *duwo, variant of dwo "two" (cognates: Sanskrit dvau, Avestan dva, Greek duo, Latin duo, Old Welsh dou, Lithuanian dvi, Old Church Slavonic duva "two," first element in Hittite ta-ugash "two years old").

Two-fisted is from 1774. Two cheers for _____, expressing qualified enthusiasm first recorded 1951 in E.M. Forster's title "Two Cheers for Democracy." Two-dimensional is recorded from 1883; figurative sense of "lacking substance or depth" is attested from 1934.

1. It's a long way to go for two people in their seventies.

对于两个七十几岁的人来说，这段路太远了。

2. He lost two stone in weight during his time there.

他在那儿的时候体重下降了2英石。

3. I undid the bottom two buttons of my yellow and grey shirt.

我解开了自己黄灰相间的衬衫上最下面的两个纽扣。

4. It would be difficult to find two men who were more dissimilar.

很难找到彼此间差异更大的人了。

5. The two policemen were joined by another policeman also carrying a pistol.

另一名持枪警察和那两名警察会合了。