It's not easy. It's not supposed to be easy. Most people make mistakes. Most people have to learn the hardest lessons more than once.
这并不容易。这并不容易。大多数人都会犯错。大多数人不得不不止一次地学习最难的课程。
这并不容易。这并不容易。大多数人都会犯错。大多数人不得不不止一次地学习最难的课程。