单词	同质多形的
释义	同质多形的pleomorphic
随便看	behind a person's back behind armor behind back behind backs behind bars behind bolt and bar behind closed doors behind closed(或locked)doors behind-door behind efficiency behind efficiency-- behind propeller efficiency behind efficiency; behind propeller efficiency behind hand behindhand behindhand in one's circumstance behindhand in one's circumstances behind line behind locked doors behind one's back behind one's back, behind one's breath behind oneself behind one's time behind one's (或someone's) back behind post