I don't know how to deal with my angry little brother.
我不知道怎麼應付我那個在生氣的弟弟。
Our homeroom teacher dealt with the problem quickly.
我們導師很快就處理了這個問題。
You need to learn to deal with stress before exams.
你要學會應付考前的壓力。
Let me deal with the dishes. You go rest.
碗盤我來處理，你去休息。