Steclin
四环素
🗣️ 情景例句
You are my best friend in the whole world.
你是我在这个世界上最好的朋友。
Who is he?
他是谁？
I have to transfer to No. ll bus, but where is the bus stop?
我需要换乘11路公共汽车，但是汽车站在哪儿？