Backpiece
护背
🗣️ 情景例句
Many foreign friends used chopsticks when they visited China.
许多的外国朋友在访问中国的时候都使用筷子。
Nothing so necessary for travellers as languages.
旅行者最需要的是几种语言。
He built a glass wall through which he could watch what went on inside.
他建造一堵玻璃墙，透过玻璃墙他能够观察里面发生的事情。