| 单词 | bolt |
|---|---|
| 音标 | [bəult] |
| 解释 | v.急逃(to dash out; dart)；螺栓，门栓 |
| 红宝书 | 【英】 v. 急逃(to dash out; dart) 【例】 The cat bolted when it saw the dog coming. |
| 字源 | bolt (n.) Old English bolt "short, stout arrow with a heavy head;" also "crossbow for throwing bolts," from Proto-Germanic *bultas (cognates: Old Norse bolti, Danish bolt, Dutch bout, German Bolzen), perhaps from PIE root *bheld- "to knock, strike" (cognates: Lithuanian beldu "I knock," baldas "pole for striking"). Applied since Middle English to other short metal rods (especially those with knobbed ends). From the notion of an arrow's flight comes the lightning bolt (1530s). A bolt of canvas (c.1400) was so called for its shape. Adverbial phrase bolt upright is from late 14c. bolt (v.) from bolt (n.) in its various senses; from a crossbow arrow's quick flight comes the meaning "to spring, to make a quick start" (early 13c.). Via the notion of runaway horses, this came to mean "to leave suddenly" (early 19c.). Meaning "to gulp down food" is from 1794. The meaning "to secure by means of a bolt" is from 1580s. Related: Bolted; bolting. |
| 不择手段背单词 | n. 螺栓, 门栓; v 急逃 = dash out = dart 【例】The pickpocket bolted 那扒手溜之大吉了. 【参】bolted(adj 脱离的 = separated) |
| 趣味全助记 | 【记】音：拨它，拨上门闩 |
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