Calciothorite
钙钍石
🗣️ 情景例句
I think aerobics is easy.
我觉得有氧运动很容易。
Please let me know.
请告诉我一声。
They offered to pay $10 a pound for the biggest biscuit baked by a listener.
他们愿意以每磅10美元的价钱买下由听众烘制的最大的饼干。