He looked around from force of habit, but nobody paid any attention to him.

他出于习惯环顾四周，但没人注意他。

《柯林斯英汉双解大词典》

I'm enjoying a couple of weeks away from work, but from force of habit Monday starts early with "The News" at7.

我正在享受几周的休假，但由于习惯的缘故，星期一早上还是一早起来听7点钟的“新闻节目”。

youdao

Just force of habit from feeding a large family, I guess.

我想是因为要养一大家子被迫的吧。

youdao