Pentnucleotide
[医] 戊糖核甙酸(成药)
🗣️ 情景例句
My father is an engineer of a construction company, and mother is a doctor.
我父亲是一家建筑公司的工程师，母亲是一名医生。
He's not in. May I take a message for him?
他不在，我能替他捎个口信吗？
It must have been about two in the morning when I returned home.
我回到家时，肯定已是凌晨两点左右了。