Tetragonal
a. 四角形的
🗣️ 情景例句
but I don't want to put it off too long.
但我希望不要拖得太久。
Constant dropping wears the stone.
滴水不绝可穿石。
We have learnt to expect that trains will be punctual.
我们已经习惯于相信火车总是准点的。