Sparkproof
a. 不发出闪光的,不发出火花的
🗣️ 情景例句
I ate eggs and drank mild for breakfast today.
我今天早餐吃了鸡蛋和喝了牛奶。
Do not sell the bear's skin before you have caught the bear.
熊未到手休卖皮（勿过早乐观）。
Fine, thanks. Oh, That's the bell. Everyone is going into class, we'd better go too.
很好，谢谢。啊，铃响了。大家都去上课。我们最好也去。