by force of habit
01
出于习惯, 不自觉地
used to refer to the act of doing something without thinking about it because one has been doing it for a long time and it has become a habit
习语
非正式
例子
Even after retirement, he would wake up early by force of habit, just as he did when he was working.
我还是会出于习惯去拿旧手机。
