Colemanite
n. [矿]硬硼酸钙石
🗣️ 情景例句
I need some help.
我需要帮助。
If you want to be healthy, you have to stop smoking cigarettes.
如果你要身体健康的话，必须停止抽香烟。
I looked out of the window.It was dark outside.
我望望窗外，外面一片昏暗。