by the day

基本解释

The business got poorer by the day, as did his financial status.
生意一天天地萧条，他的经济状况也每况愈下。
Their decision to hang on to the brand is looking better by the day.
他们最后决定保留这个品牌。如今看来，这一决策日益显得明智。
When goals aren’t assigned deadlines or schedules for completion, they tend to be overtaken by the day-to-day crises that invariably arise in an organization and eventually are forgotten.
员工没有最后期限或时间表的时候，他们就会为每天出现的危机——这种危机没有不发生的时候，可是最终都会被人遗忘——而疲于奔命。

India's seven to eight million pullers usually pay one-third of their earnings to the owner of a rickshaw to use it by the day.
Some people can fight the brain off in this case, and control their food intake, maintain a healthy diet, and maintain a normal weight, but the number of such people in the population is shrinking by the day.
有些人可以抵制大脑的控制,控制食物的摄入量,维持健康饮食保持正常体重,而今,这类人的数量日益减少
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
The Bible is the product of minds that were exposed to and influenced by and reacting to the ideas and cultures of their day.
圣经是当时社会精神碰撞的产物,受到当时思想文化的影响，并对其进行反馈。
耶鲁公开课 - 旧约导论课程节选

And he will lead a flock of 2.6m that gets less homogeneous by the day.
ECONOMIST: New York’s Catholics