You'll be up against it if you don't pass the test.

如果你考试不及格的话，你将面临困难。

You will be up against it if you don't pass the test.

这次考试如果不及格，你的麻烦就大了。

God is bigger than any mountain you may be up against in your life.

在你可能面临的任何“困难大山”中，上帝是第一重要的，最能帮助你的。

You'd be up against Sir Alex - how big an influence has he been on you?

那你就得和爵爷单挑了，他对你有多大影响？

In that type of business you will naturally be up against very stiff competition.

在那类事业中，你自然要面临激烈的竞争。