Backerboard
违衬板
🗣️ 情景例句
Sports help to develop healthy bodies.
运动可以锻炼健康的身体。
How ofter did I tell you to sit straight?
我告诉你多少次要坐正?
I see. I hope everything goes well. Bye!
我明白了。我希望你一切顺利。再见。