改掉的英文：
give up

To remove,remedy,or counteract(a malfunction,for example.
改掉、弥补或抵消(如故障)

Prodigal habits die hard.
大手大脚的习惯很难改掉。

tried to unlearn smoking.
竭力改掉抽烟的习惯

A bad habit is easily acquired but broken up with difficulty.
坏习惯染上容易改掉难。

It is not easy to break off a bad habit.
要改掉一个坏习惯不容易。

You should break up your wasteful habits.
你应该改掉挥霍的习惯。

You must drop that habit.
你必须改掉那个习惯。

She persuaded her husband to forsake his drinking habit.
她说服丈夫改掉嗜酒的习惯。

Parents try to cure their children of bad habits
父母都想使他们的孩子改掉坏习惯。

"Once you get into a bad habit, you'll find it hard to get out of it."
"一旦染上坏习惯,想改掉就难了。"

Will you give it a shot?
你想做尝试吗？

He gives twice who gives quickly

The purpose is not to give an exhaustive treatment.
其目的并不是给出全面彻底的处理。

You must give way to betters.
你必须让长者先行。

Give your real name.
说出你的真实姓名。