Nitrocalcite
钙硝石
🗣️ 情景例句
My car broke down on the road.
我的车在路上抛锚了。
How many yards are you going to get?
你要取几码？
it would be more like that of a bluebottle buzzing round the room;
那就像一只嗡嗡叫的绿头苍蝇在屋内飞行的轨迹，