Dideoxy
双脱氧法
🗣️ 情景例句
He's still not used to life in the city.
他仍然没有适应城市生活。
Forgive me.
请原谅我。
Sending a fax is more expensive than posting a letter, but much quicker.
发传真比寄信要贵些，但是要快得多。