Sparkproof
a. 不发出闪光的,不发出火花的
🗣️ 情景例句
How come he never got married?
为什么他不结婚？
Wealth is not his who has it, but his who enjoys it.
财富并不属于拥有的人，而是属于享用的人。
The geologist needs to know what rocks the drill has reached,
地质学家需要知道钻头已经到达什么样的岩层，