n.出生；生产；出身；血统网络催生变形：复数：births过去分词：birthed现在分词：birthing双语释义：n.(名词)[U]出生,分娩,生育 emergence of young from the mother's body; being born or bearing young[C]起源 coming into existence; beginning[U]门第,出身 family origin; descent英英释义： birth[ bɑ:θ ]n.the time when some