Definition (离开)
To depart or say goodbye to someone or something.
告别
After a long journey, he was finally ready to take leave of the city.
经过漫长的旅程，他终于准备好告别这座城市。
She took leave of her colleagues and began her retirement.
她向同事们告别，开始了她的退休生活。
We had to take leave of the beautiful beach before sunset.
我们不得不在日落前离开这美丽的海滩。