Tetragonal
a. 四角形的
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
I've got a slight pain in my teeth.
我的牙有点痛。
It's about four hundred yards down this street.
城堡就在这条街上，（离这儿）400码左右。