我和我兄弟为了养家糊口而日夜操劳。

My brother and I worked day and night to keep the family.

他开始为新中国首都的建设日夜操劳。

He began to work day and night for the construction of the capital of New China.

她把手放在我的手上，虽然她的手由于日夜操劳而变得粗糙，可又是多么温柔舒适啊。

She put her hand, which was a comfortable hand though roughened by work, upon my hands, one after another, and gently took them out of my hair.