There's no point in worrying over things you can't change.
对改变不了的事情担心也没用。
《牛津词典》
2
The debate over this final point caused the Rank board to change their calls more frequently than a bingo announcer...
关于这最后一点的争论，引起股东会接二连三地更改他们的对外通告。
3
People changeover thime so it's not surprising that many boys& girls find themselves facing their best friends break up at some point in their middle school years.