Pre-coating
[化] 预涂层
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
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
and we have Popo the Clown to entertain you.
我们请了小丑Popo来给大家表演助兴。
But you have to pay 5% commission on this money exchange.
但兑换这笔外币，您得另外付5%的手续费。
Are they under the chair?
他们在椅子下面吗？