back down
v.
in figurative sense of "withdraw a charge," 1859, American English, from notion of descending a ladder, etc.; from back, v. + down, adv..
| 词汇 | back down |
| 词根词缀 | Online Etymology Dictionary back down v. in figurative sense of "withdraw a charge," 1859, American English, from notion of descending a ladder, etc.; from back, v. + down, adv.. |
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