| 词汇 | fall-in |
| 释义 | fall inphrasal verb with fallverbuk /fɔːl/ us /fɑːl/fell | fallen (ROOF)If a roof or ceiling falls in, it drops to the ground because it is damaged: （屋顶或天花板）坍塌，塌陷 Ten miners were trapped underground when the roof of the tunnel fell in.坑道顶部坍塌，10名矿工被困地下。 Destroying and demolishing annihilate annihilation apocalypse bash bash through (something) be sacrificed on the altar of somethingidiom costly dynamite erosion erosional erosionally erosive saboteur sack sacking sacrifice scarred self-destruct sink wipe (SOLDIERS)If soldiers fall in, they form a line or move in a line, one behind the other: 列队;集合 "Company, fall in!" shouted the sergeant-major.“全连集合！”军士长喊道。 fall in behindHe started to march away, and the others fell in behind him.他开始大步前进，其他人列队紧随其后。 Compare fall out(SOLDIERS) Military training & ceremonies assault course attention civil defence drill drumhead ease fall fatigue fight song march national service obstacle course pass out passing-out recon reconnaissance route march salute tour troop |
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