Tetragonal
a. 四角形的
🗣️ 情景例句
I just received your letter and I want to let you know my opinion on your plans for the future.
来信已收到，我想告诉你我对你将来打算的看法。
At noon I had lunch with a friend of mine.
在中午我与一个朋友一起吃了午餐。
The porter, however, could not understand me.
然而搬运工却不明白我的话。