"如果你能承受失望，没有什么能打败你"

Simplified Meaning:

When things don't go the way you hope and you're let down, it can feel crushing. But if you can get through those tough times and not let them keep you down, you become much stronger. Think about when you apply for a job you really want, but you don't get it. It hurts a lot, but if you keep trying and don't give up, you'll eventually find a job that's right for you. Overcoming that disappointment makes you tougher and shows you can handle anything life throws at you. This means that if you keep going even when things are hard, you'll become almost unstoppable, because you won't let setbacks hold you back. It's like building muscle—you get stronger each time you lift something heavy. So, whenever you face a setback, remember that getting past it will make you stronger for the future.