Polydeter
多行列式
🗣️ 情景例句
There are thirty-three thousand three hundred and thirty-three feathers on that bird's throat.
那只画眉鸟的喉咙上有三万三千三百三十片羽毛。
Why did you get up so early?
为什么你这么早起床？
How long has Kate been at her school?
凯特进校学习有多长时间了？