动物的注意力永远是警觉着的——这并不是由于有意识的努力，而是由于习惯和天性。

Animals' power of attention is always on the alert –not by conscious effort, but by natural habit –and disposition.

youdao

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”。

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

youdao

由于特权和习惯,她的态度愈来愈顽固。

Her attitudes solidified through privilege and habit.

《柯林斯英汉双解大词典》