tap into 利用
tapping a phone line 窃听电话
tapping a market 开发市场
A: Did you hear that tapping noise?
A：你听到那个敲击声了吗？
B: Yes, it sounds like someone is at the door.
B：是的，听起来像是有人在门口。
1) 轻敲，轻拍
2) 开发，利用
3) 窃听，拦截
1. 轻敲，轻击
2. 开发，利用
noun/participle
1. the action of hitting something lightly and repeatedly; the act of exploiting or using something.
Synonym: knocking, exploiting