(technical)a substance or thing that remains or is left behind, in particular (技)残留物,余留物,尤指 a chemical residue. 化学残留物。 ■(Sociology)a class of society that is unemployed and without privileges or opportunities (社会学)弱势阶层(指社会上无业、无特权或无机会者)
语源
late 17th cent.: from Latin, neuter of residuus 'remaining', from the verb residere