Dideoxy
双脱氧法
🗣️ 情景例句
Usually a house is too expensive for the salary-earning class to buy.
通常房屋太贵，工薪阶层买不起。
When is the most convenient time for you?
你在什么时间最方便呢？
Where can we see your complete line?
什么地方可以看到你们全部产品的样品？