B synnematin
[医] 共霉素B, 头孢菌素N, 青霉素N
🧩 词语组成解析
共霉素
🗣️ 情景例句
Matches.
火柴。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
Hello, Wei Hua! Where are you going?
你好，魏华！上哪儿去呀？