Erythrocin
红霉素
🗣️ 情景例句
kick off your shoes, and sit down.
脱掉你的鞋子， 坐下来。
We've increased our efficiency by 20% through automation.
通过自动化我们的效率增加了20%。
Dear Ling Feng,
亲爱的Ling Feng：