orientableWiktionary 原文英美构词拆解orientorient词干able-able后缀-ableAble to be done; fit to be done. · Relevant to or suitable to, in accordance with.词源说明From orient + -able.释义形容词adjective1(topology) Able to be oriented.同族词派生词 4nonorientable·biorientable·unorientable·coorientable