Quarternate
四个一组的
🗣️ 情景例句
Just listen to the sound.
听听这些声音。
The industrial area is centered largely in the north.
那里的工业区大部分集中在北部。
We sometimes imagine a desert island to be a sort of paradise where the sun always shines.
我们有时想象荒岛是阳光终日普照的天堂。