“做决定”的英语可以翻译为：make a decision...

他要自己做决定，不会被他人左右。He'll be his own man and won't be dictated to.你最好考虑一下这一点，并在做决定时将其考虑在内。You'd better consider this and factor this into your decision making.我当时就得做决定。I had to decide right then....