Pipeclay
（造烟管或皮革用的）白黏土, <喻>（军队对服装等的）严格要求
📖 牛津释义
pipeclay
n [U] fine white clay used (esp formerly) for making tobacco pipes and for whitening leather, etc 白陶土（尤於旧时用以制烟斗、 使皮革增白等）.
🗣️ 情景例句
I'm thinking of ordering 100 sets. But one problem-
我正考虑定购一百台，只是一个问题-
This is a desk.
这是一张桌子。
Harry does not need to be prompted to explain how he bought his precious bottle of mud.
毋须暗示哈里就会向你讲起他买下那瓶珍贵香水泥的经过。