Foldback
返送（系统）, 监听（系统）
🗣️ 情景例句
What do you call this in English?
这个用英语怎么说？
A tall tree catches the wind.
树大招风。
They were climbing up the wall of the house and then on to the leaves of the tree.
它们正在顺着房子的外墙往上爬，然后爬上树叶。