Calvital
氢氧化钙
🗣️ 情景例句
It's about my grandfather.
是关于我爷爷。
Envy assails the noblest, the winds howl around the highest peak.
高位遭人妒，高峰招风吹。
Pollution is the price we pay for an overpopulated, over industrialized planet.
污染就是我们为这个人口过密，过度工业化的星球所付出的代价。