v. 在某物下挖洞或挖通道( undermine的第三人称单数 ); 侵蚀…的基础; 暗中破坏; 逐渐削弱
🗣️ 情景例句
We'll take you to him.
我们会送你去他那儿。
Whom will you invite to the wedding?
你将邀请谁参加婚礼?
It took him some time to connect the long rubber pipe to the air supply pipe that ran round the port, but at last it was done and as a result work was able to progress much faster.