degree of a vertex

例句：

1. 1. The angle of the sunrise is 30 degrees above the horizon.
   日出的角度是地平线上方30度。
2. 2. The temperature has dropped by 5 degrees since yesterday.
   自昨天以来，温度下降了5度。
3. 3.The company's stock price has increased by 10% in the past year.
   该公司的股票价格过去一年内上涨了10%。