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 never realized that.
我从来没有意识到这点。
May I refill your drink?
再喝一杯如何？
Uncle Wang was waiting for them outside the factory gate.
王大叔在工厂大门外等他们。