单词 | free run |
释义 | free run1/ˈfriː rʌn/Winemaking noun Unfermented juice, or young wine which is at least partially fermented, derived from grapes which have been crushed but not yet pressed. OriginMid 19th century. From free + run. Compare earlier free-running. free-run2/ˌfriːˈrʌn/verb 1 [no object] Of a signal generator, timepiece, etc.: to operate independently, without external influence or intervention. Also in extended use: to run freely, loosely, or easily. 2 [no object] Biology. Of a circadian rhythm: to operate in the absence of, or independently of, light or other external cues indicating the time of day. Also (of an organism): to maintain a circadian rhythm in this way. Origin1940s. From free + run. |
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