day in and day out 夜以继日 ; 日以继夜 ; 天天
Day in and day out, the flat crack of the tank guns reverberates through the little Bavarian town.
日复一日地，单调的坦克炮的轰隆声在巴伐利亚的这个小镇上空回响着。
But their own experience, day in and day out, is of being a single user working with the software.
不过这些开发者自己的体验，只是一天又一天地以一个单个用户的身份使用软件。
So he works, consistently and deliberately, toward his goals. He does the same things day in and day out.
他就这样持续而谨慎地朝着目标努力，一天天做着同样的事情。
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