heel in的用法和样例：
例句
- The committee tried to persuade the chairman to give them more time for a decision, but he dug his heels in and refused to listen.
委员会委员们试图说服主席让他们多考虑一段时间再作决定，但是主席固执己见，不听他们的。 - He will not agree with you. He still sticks his heels in.
他不会同意你的观点，他仍然不改变主意。
词汇搭配
- hairy in the heel 没礼貌的
