Subject + 向 + Person + 道歉
The verb 道歉 (dàoqiàn) means "to apologize," describing the act of expressing regret for a mistake or offense. It is a formal and standard way to say "apologize" in Chinese. Use 向 before the person you are apologizing to: 向某人道歉.
他意识到自己的错误后,立刻向同事道歉了。
tā yìshí dào zìjǐ de cuòwù hòu, lìkè xiàng tóngshì dàoqiàn le.
After realizing his mistake, he immediately apologized to his colleague.
你应该为迟到向老师道歉。
nǐ yīnggāi wèi chídào xiàng lǎoshī dàoqiàn.
You should apologize to the teacher for being late.
她虽然道歉了,但语气并不真诚。
tā suīrán dàoqiàn le, dàn yǔqì bìng bù zhēnchéng.
Although she apologized, her tone was not sincere.