train your sights on something 立志做

表达“train someone's sights on something 对准某物” 用来比喻 “为达到某个目标下决心，立志要做某事”。注意，在这里，及物动词 “train” 的意思并不是 “训练”，而是指 “瞄准”。

例句

She's been staying late in the office recently because she has trained her sights on getting a promotion.

最近她一直在办公室加班到很晚，这是因为她已决心要升职。

After the team's greatest rivals beat them to the trophy, their coach trained his sights on winning it back.

在这支队伍最强的对手把他们打败并赢得了奖杯之后，他们的教练就下决心要把它赢回来。

He trained his sights on losing weight over the summer. That's why he started a diet and joined the gym.

他立志要在这个夏天减肥。这就是他开始新的饮食方法以及加入健身房的原因。