Plumbers
n. 管子工, 水暖工( plumber的复数形式 ); [美][口]（防止泄密的）堵漏人员
🗣️ 情景例句
Goodbye, it was a pleasure meeting you.
再见， 和你见面很高兴。
Money spent on the brain is never spent in vain.
智力投资，决非虚掷。
Is this your standard price?
这是你们的基本准价吗？