There’s no need to apologize.
I apologize for taking so long to reply.
You should apologize to your customers for wasting their money.
The newspaper has apologized unreservedly for printing false allegations about her.
英语词典包含67175条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。