| 正面 | 2843.unknown 英 [ʌn'nəʊn]美 [,ʌn'non]     |
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| 背面 |     释义： 1、shoot is from PIE root *skeud- "to shoot, to chase, to throw, to project".2、具有同源性的单词：scoot, scud, shoot.3、shoot + -ing.adj. 未知的；陌生的，默默无闻的n. 未知数；未知的事物，默默无闻的人 例句： 1. The best thing to do when entering unknown territory is smile.踏入未知地带最好的对策就是微笑。 unknown (adj.)c. 1300, "strange, unfamiliar" (of persons, places), from un- (1) "not" + past participle of know (v.). Compare Old English ungecnawen. In reference to facts, "not discovered or found out," it attested from early 14c. The noun meaning "unknown person" is recorded from 1590s; the unknown "that which is unknown" is from 1650s." |