清砖淡瓦
起源 [qǐ yuán](根源) origin;beginning;derivation;rise in生物的起源 the origin of living things;文明的起源 the origin(s) of civilization(开始发生) originate from;originate in;stem from;come from这场争吵 起源于误解。The quarrel originated in a misunderstanding.
优质英语培训问答知识库