Tell the cook of this restaurant with my compliments that these are the very worst sandwiches in the whole world, and that when I ask for a watercress sandwich I do not mean a loaf with a field in the middle of it.

数学的历史是人类好奇心和创造力的历史。

I write to make sense of the world.

我们画的每一条线都会在人们的生活中产生影响。

农业创新不仅仅是技术问题，更是思维方式的转变。