改掉

It's possible to break with old habits.

改老惯是可能的。

He had the rough edges knocked off him at school.

他在学校改了些坏毛病。

He was shamed out of his bad habits.

他感到羞愧而改了坏毛病。

We must civilize away the boy's bad habit.

我们必须教育这孩子使其改恶。

It's much easier to get into a habit than quit it.

养成惯改惯容易得多。

He'll soon grow out of wetting the bed.

他大些就会很快改尿床的毛病的。

It can be extremely difficult to wean children off junk food.

让儿童改吃零食的惯有时十分困难。

My sister has been preaching at me again about my lack of neatness.

我姐姐又在跟我唠叨要我改不爱整洁的毛病。