| 词汇 | can |
| 词根词缀 | 词源： 1. can (v.) O.E. 1st & 3rd pers. sing. pres. indic. of cunnan "know, have power to, be able," (also "to have carnal knowledge"), from P.Gmc. *kunnan "to be mentally able, to have learned" (cf. O.N. kenna "to know, make known," O.Fris. kanna "to recognize, admit," Ger. kennen "to know," Goth. kannjan "to make known"), from PIE base *gno- (see know). Absorbing the third sense of "to know," that of "to know how to do something" (in addition to "to know as a fact" and "to be acquainted with" something or someone). An O.E. preterite-present verb, its original p.p., couth, survives only in its negation (see uncouth), but cf. could. 2. can (n.) O.E. canne "a cup, container," from P.Gmc. *kanna, probably an early borrowing from L.L. canna "container, vessel," from L. canna "reed," but the sense evolution is difficult. Modern "air-tight vessel of tinned iron" is from 1867; can-opener is from 1877; the verb meaning "to put up in cans" is attested from 1871. Slang meaning "toilet" is c.1900, said to be a shortening of piss-can. Meaning "buttocks" is from c.1910. Verb meaning "fire an employee" is from 1905. Canned "pre-recorded" first attested 1904. 词根记忆： aux.v.能;可以n.罐头;容器vt.把…装罐Can you give me a lift?你能让我搭个便车吗? |
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