我抚摸着我胸骨上的一块刺痛，那就是她披着秀发的头曾有一两次靠在我的心房的地方。
纯数学和应用数学之间的相互作用是真正创新发生的地方。
In the era of globalization, China's vegetable industry must not only go global but also rise to the top, showcasing the confidence of Chinese agriculture.
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
我们都被自己选择的幽灵所困扰。