fall in
phrasal verbwithfallverbuk/fɔːl/us/fɑːl/fell|fallen
(ROOF)
If arooforceilingfallsin, itdropsto thegroundbecause it isdamaged:
（屋顶或天花板）坍塌，塌陷Tenminersweretrappedundergroundwhen theroofof thetunnelfellin.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 ofsomethingidiom
- in piecesidiom
- indestructibility
- killsomethingoff
- kill the goose that lays the golden eggidiom
- knock
- sacrifice
- self-devouring
- shred
- sink
- smash
- stave
- stavesomethingin
- takesomethingout
- tear
(SOLDIERS)
Ifsoldiersfallin, theyformalineormovein aline, one behind the other:
列队；集合"Company,fallin!"shoutedthe sergeant-major.“全连集合！”军士长喊道。
Hestartedtomarchaway, and theothersfellinbehindhim.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
- civil defence
- double time
- drill
- ease
- fall
- fatigue
- fight song
- garrison
- march
- parade
- pass out
- recon
- reconnaissance
- route march
- salute
- take the saluteidiom
- tour
- tour of duty
- troop