fall intosth
—phrasal verbwithfallverbuk/fɔːl/us/fɑːl/fell|fallen
(START)
tostartdoing something, often withoutintendingto
开始做
We'vefalleninto thehabitof getting up late onSaturdaymornings.我们开始习惯周六早晨睡懒觉。
Ifellinto myjobquitebyaccident.我从事这份工作很大程度上是出于偶然。
Shefellinto aconversationwith thetaxidriver.她和出租车司机交谈起来。
(BECOME)
tograduallyget into aparticularcondition,especiallyto get into abadconditionas aresultof not being takencareof
（尤指因疏于照管）陷入（某种状况）
Over theyearsthehousehadfallenintodisrepair.过了这么多年这幢房子已破败不堪。
Theoldschoolfellintodisuse(=peoplestoppedusing it).老校舍废弃不用了。