"习惯" 在英文中可以表达为 "habit"。来源于拉丁文 "habitus"，意为 "容貌、外貌" 或 "习性、习惯"。例句如下：

It's a good habit to brush your teeth twice a day. (刷牙两次是一个好习惯。)
Smoking is a dangerous habit. (吸烟是一个危险的习惯。)
She has a habit of getting up early. (她有早起的习惯。)

"在生活" 在英文中可以表达为 "in pfe" 或 "in daily pfe"。例句如下：

Exercise is important in pfe. (锻炼在生活中很重要。)
He always wears a suit in daily pfe. (他日常生活中总是穿西装。)

因此，"习惯在生活" 可以表达为 "habit in pfe" 或 "habit in daily pfe"。例句如下：

It's a good habit in pfe to eat healthy food. (健康饮食是生活中的一个好习惯。)
Not smoking is a beneficial habit in daily pfe. (不吸烟是日常生活中的一个有益的习惯。)