To bank on something means to bet that something will happen in a certain way.

To bank on something 意思是确信某事会以一种特定方式发生。

So, over here, when we say you can bank on something, we're saying, hey, something is going to happen, and it's going to happen in a certain way.

所以，在这里，当我们说你可以指望某件事时，我们是在说，嘿，某件事将会发生，而且会以某种方式发生。