Nigrin
黑杆菌素
🔁 扩展释义
【医】 链霉菌黑素
🗣️ 情景例句
Haven't you finished balancing that checkbook?
你还没有核对完支票簿帐目吗？
When are you going to swear off cigarettes?
你打算什么时候发誓戒烟？
How long have you lived there?
你在那里住多久了？