Chertification
[地质]燧石化
🗣️ 情景例句
It's midnight.
都午夜了。
Please call me before you come.
你来之前请打电话。
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。