| 词汇 | relay |
| 词根词缀 | 词源： relay (n.) c.1410, "hounds placed along a line of chase," from M.Fr. relai "reserve pack of hounds or other animals" (13c.), from O.Fr. relaier "to exchange tired animals for fresh," lit. "leave behind," from re- "back" + laier "to leave" (see delay). The etymological sense is "to leave (dogs) behind (in order to take fresh ones)." Of horses, 1659. Electromagnetic sense first recorded 1860. As a type of foot-race, it is attested from 1898. The verb is first attested c.1410. 词根记忆： v. 中继,转播,接力n.接替人员,替班Lay a layer of clay on the displayed layout before the relay race.接力赛之前在展示的陈设上铺一层黏土. |
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