Spherograph
球面三角计算盘
🗣️ 情景例句
What do you mean?
你是什么意思？
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
One day she came into his office and happened to put her hands on the door of a locked safe.
一天，维拉走进父亲的办公室，偶然把手放在一个锁着的保险柜的门上，