Centrograph
中心图解法
🗣️ 情景例句
No, it's Ok.
不用， 没有关系 。
This driver cannot driver any farther because there is a man in the manhole.
由于
Eventually chains were fixed to one end of the dish and a powerful winch was put into operation.
不过，他们终于将链条固定在盘子的一端，一台大功率的绞车开动起来。