带by的英语短语

例句：

They sleep by day and hunt by night.

他们白天睡觉，夜晚捕猎。

He was a loner by nature and by inclination.

他天性不喜交际，且自己也无意于此。

Nocturnal animals sleep by day and hunt by night.

夜间活动的动物白天睡觉晚上猎食。