Refractory coating
[机] 耐火涂料
🧩 词语组成解析
coating
['kəutiŋ]
n. 涂层，覆盖层;（食品上的）面衣，糖衣，涂料;外衣布料上衣料，细呢，花呢;
v. 给…穿上外衣;覆盖;“coat”的现在分词;
🗣️ 情景例句
Usually a house is too expensive for the salary-earning class to buy.
通常房屋太贵，工薪阶层买不起。
He alone is poor who does not possess knowledge.
没有知识，才是贫穷。
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？