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
And this is Abe Lucas. You must remember Abe.
这是Abe Lucas。你一定记得Abe。
You cannot flay the same ox twice.
一头牛不能剥两次皮。
He noticed at once that discipline was slack: the Danes had the self-confidence of conquerors, and their security precautions were casual.
他马上发现丹麦军纪律松弛，他们以征服者自居，安全措施马马虎虎。