habit

He's in the habit of getting up late on the weekend.

他有周末晚起的习惯。

Do you have the habit of offering your seat to the old on the bus?

乘车时你有主动给老人让座的习惯吗？

He said he would try to break the habit of going to bed late.

他说他将设法改掉晚睡的习惯。

Don't fall into the bad habit of smoking.

别沾染上吸烟的坏习惯。

I've got out of the habit of taking a walk after dinner

我已经没有晚饭后散步的习惯了。

I only do it out of habit.

我这么做仅仅是出于习惯。