Sparkproof
a. 不发出闪光的,不发出火花的
🗣️ 情景例句
But if we go out,
但是我们出去后，
He should meditate on the problem.
他必须就那个问题好好地想一想。
Water streamed in torrents over its sides with such force that it set up a huge wave in the canal.
波浪从盘子两侧急涌而出，在运河里掀起一股大浪。