啊-- diastolic--舒張, is relaxed vs. systolic

回答: 一个原始的声音 啊焕华2012-11-10 02:12:44

ah, oh and yi are exclamation and have no significant difference while yi1 in English is alas  yi2 expresses surprise: well or why.  yi3 also exclames.

请您先登陆,再发跟帖!