短语 “set your sights high” 的字面意思是 “把眼光放高”，但它实际被用来描述人们给自己定下很高的目标、志向或要求。

• I like to set my sights high – I want to get a promotion in the next three months.
  我想把目标定得高些。我想在未来的三个月内得到晋升。
• We're aiming to double our profits this year. We're really setting our sights high.
  我们的目标是将本年度的利润翻番。我们真的是定下了很高的目标。
• If you set your sights high you will achieve a lot more.
  若立志高远，则成果卓著。