Tcs
[化] 四环素类抗生素
🗣️ 情景例句
Let's get the ball rolling.
让我们开始吧。
My uncle is a high school principal.
我的叔叔是一位高中校长。
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。