Deoxynucleoside
[化] 脱氧核苷
🗣️ 情景例句
What's the problem, Richard?
有什么问题吗 Richard
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
Letters will cost a little more, but they will certainly travel faster.
这样会稍微多花点钱，但肯定是快得多了。