“呕吐物”用英语怎么说？

我闻到了呕吐物的臭气.The rank smell of vomit reached me.我马上就闻到了呕吐物的酸臭味.The stink of vomit reached me instantly.呕吐物或吸引液内酸的浓度不需要达到这一程度.The concentration of acid in vomitus or aspirate need not reach this limit....