| 词汇 | tab |
| 词根词缀 | 词源： 1. tab (1) "small flap," 1607, possibly a dialectal word, of uncertain origin. Often interchangeable with tag (1). The verb meaning "to designate, label" is 1924, perhaps an alteration of tag (1). 2. tab (2) "account, bill, check," 1889, Amer.Eng. colloquial, probably a shortened form of tabulation or of tablet in the sense of "a sheet for writing on." Fig. phrase to keep a tab on is recorded from 1890. 3. tab (3) 1961, shortened form of tablet (esp. one of sugar containing LSD). As an abbreviation of tabloid (newspaper) it is 1990s slang. As a short form of tabulator key of a typewriter (later computer) it is recorded from 1916. |
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