跨国合作对解决全球粮食安全挑战至关重要。
"The only real elegance is in the mind; if you've got that, the rest really comes from it."
耐心是一种美德，我正在学习耐心。这是一个艰难的课程。
社会主义的目标是共产主义。
Your struggles don't define you; how you overcome them does.