to say sorry for something you did
为你做过的事情道歉 (wèi nǐ zuò guò de shìqíng dàoqiàn)
"She apologized for forgetting his birthday."
"她为忘记他的生日道歉。" (Tā wèi wàngjì tā de shēngrì dàoqiàn.)
to feel deep sadness or longing because of something or some...
to mentally prepare for something challenging or frightening
to do your fair share of the work
to publicly support a cause or person
to show opposition to something through public action
to pause or stop doing something temporarily