Steclin
四环素
🗣️ 情景例句
I couldn't be more sure, Susan.
我再确定不过了， Susan。
Please do now hesitate to as any questions.
如有问题您可随时提出来。
I must go to the grocer's.We haven't got much tea or coffee, and we haven't got any sugar or jam.
我得去一下食品店。我们的茶叶和咖啡不多了，糖和果酱也没有了。