Circular measure
弧度，弧度法
🧩 词语组成解析
🗣️ 情景例句
His father has to sell the farm to pay back the bank.
他的父亲不得不把家声卖掉以还债给银行。
Let's find out.
我们去问一下吧。
The Olympic Games will be held in our country in four years' time.
4年以后，奥林匹克运动会将在我们国家举行。