Cyclomycin
(=tetracycline)四环素
🗣️ 情景例句
She's coming over this morning to help me with my math.
她今天早晨要过来帮我补习数学。
I'm sorry to keep on coughing.
我不停地咳嗽，真是抱歉。
Bob tries another pop star. This time he has more difficulty in getting through.
鲍勃试着想请另一个流行歌星。但这次电话比较难打通。