natural drainage自然: nature; natural world排液: apocenosis; tap; run; kick-o ...自然排放: natural discharge自然排风: natural exhaust自然排卵: natural ovulation; spontaneous ovulation下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:自然排液，即可在微信中查询翻译
