"Make a decision to do something" 用英语表达为 "decide to do something"。
其中，"decide" 是一个动词，意思是 "to make a choice or reach a conclusion after thinking about something carefully"。而 "to" 是一个介词，连接动词和名词或动词短语。
例句：
I decided to go to the party tonight. (我决定今晚去参加聚会。)
We need to decide what to do next. (我们需要决定下一步该做什么。)
He couldn't decide whether to take the job or not. (他不能决定是否接受这份工作。)