习惯的英文：
habit
custom
usual practice
be used to

参考例句：

Custom reconciles us to everything.
习惯使我们安于一切。

Cultivate a habit
养成一种习惯

To be packed in ordinary export packing.
按出口习惯包装

Eating hot dogs is an American custom.
吃热狗是美国人的一种习惯。

They have the custom to do the walls out with white paper
他们有用白纸糊墙的习惯。

Are you used to the weather in Taipei?
你习惯台北的天气吗?

Is it easy to slough off old habits?
老习惯好改吗？

To accustom by frequent repetition or prolonged exposure.
使……习惯由于经常重复或长时间接触而适应。

He have a habit of sunbathe for two hours a day.
他习惯每天做两小时日光浴。

intemperate habits
无节制的习惯(尤指饮酒过度)

habit是什么意思：
n. 习惯；习性；气质

Habit cures habit
心病还需心药医

You are developing enthusiasm as a habit, and habits require reenforcement.
你应将热忧培养成一种习惯，而习惯需要不断的补给。

He has no habit of smoking.
他没有吸烟的嗜好。

custom是什么意思：
n. 风俗；习惯；经常光顾；（经常性的）顾客；海关
adj. 定制的

Once is no custom
一次不成例

Customize a van.
定做一辆大马车

Customs officers are in charge of the customs inspection.
海关官员负责海关检查。

usual是什么意思：
adj. 通常的，寻常的；惯例的
n. 惯常的事物；常喝的饮料

Usually y is a function in math.
X is not a function in math.

Used as the usual style for a baron.
男爵用作男爵的常用称呼。

Mothers are usually gentle with their babies.
母亲对自己的婴儿总是很温柔。