Methacrol
麦撒克罗(润滑剂)
🗣️ 情景例句
Nice weather today, isn't it?
天气不错，是吧？
Between two stools one falls to the ground.
脚踏两头要落空。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时