iron curtainWiktionary 原文英/ˌaɪən ˈkɜːtn̩/美/ˌaɪ(ə)rn ˈkɜrt(ə)n/构词拆解iron词干+curtain词干词源链原始词根原始印欧语Proto-Indo-European约前 4500–前 2500 年*ǵʰer-英语Englishiron curtain词源说明From iron + curtain.释义名词noun1(theater) A barrier made of iron in a theatre, lowered between the stage and the auditorium for fire safety or to prevent communication.2