Sparkproof
a. 不发出闪光的,不发出火花的
🗣️ 情景例句
He's not crying anymore.
他不再哭了。
Yay, a hole in one!
嘿！一杆进洞！
Workers will have completed the new roads by the end of this year.
工人们将在今年年底前把新路铺好；