Etisul
[医] 肽乙硫, 异肽酸二乙二硫酯
🗣️ 情景例句
I see how people spend their leisure time--
我看到人们怎样利用闲暇时间
My Biochem lectures are in the morning, and the labs are in the afternoon.
生物化学的课安排在上午，实验在下午。
What are these?
这些是什么？