You could hike through the Fish River Canyon – it's entirely up to you.

你可以远足穿越菲什干河大峡谷–这全由你自己决定。

《柯林斯英汉双解大词典》

The wonderful thing about failure is that it's entirely up to us to decide how to look at it.

失败的美妙之处在于，如何看待它完全取决于我们自己。

youdao

Some teenagers never take entrance exams seriously; they simply leave what, to a large extent, could be the most important event in their life almost entirely up to luck.

一些青少年从来不拿高考当回事儿；他们把这件可能很大程度上是人生中最重要的事情几乎完全交给运气。

youdao

"It is entirely Gordon Brown's own fault that this is now happening in the run-up to the general election,".

VOA: standard.2010.01.22

But after that it was entirely up to me, riding my bike, to get there.

FORBES: Walkability, Mobility, and Freedom

What you do with that service, texts, voice, data, is entirely up to you.

FORBES: In Order To Beat Skype You Must Become Skype

Since Patco has no onboard conductors, its quiet-car policing is entirely up to the passengers.

WSJ: Shhh! 'Quiet Cars' Turn Commuters Into Librarians