Heliometry
量日仪测量术
🗣️ 情景例句
I'm sorry, I really don't know.
对不起，我真的不知道。
A full cup must be carried steadily.
杯满盈，须持稳。
They're said to be very good. What time does the performance start?
据说他们很棒。演出什么时候开始？