Etisul
[医] 肽乙硫, 异肽酸二乙二硫酯
🗣️ 情景例句
No, thank you.
不， 谢谢 。
It's about time.
时间差不多了。
Why? English is the first language in none of these countries.
为什么？在这些国家中英语都不是第一语言。