药物分为内服药与外用药两类.Medicines are broadly classed as internal or external ones.很多内服药就是催化反应的产物.Many medicines are products of catalysts.这是内服药. 一天四次,每次两片.This is for internal use. Two tablets, four times a day....
First off, huge apologies for last month's confusing report.首先,要对上个月那篇交代不清的报道表示深深的歉意.First off, let's see how much it'll cost.首先, 让我们看看要花多少钱.First off, let's see where we agree and disagree.首先, 我们来看看我...