belabor

他不停地道着歉，直到朋友笑着说她早就把那件事忘了。

He kept ___belaboring his apology until his friend finally laughed and said she had already forgotten the incident.

项目经理纠缠一个无关紧要的格式问题不放，而整份报告的截止时间却迫在眉睫。

The project manager ___belabored a minor formatting issue while the deadline for the entire report loomed.

每次家庭聚会，玛莎阿姨都要把邻居的狗毁了她获奖玫瑰的事翻来覆去地讲一遍。

At every family gathering, Aunt Martha ___belabored the story of how her neighbor's dog ruined her prize roses.