全球粮食安全始于地方行动与合作。

"A journey is best measured in friends, rather than miles."

Love yourself first, because that’s who you’ll spend the rest of your life with.

Every failure in the lab is a step closer to success.

I was taught that the way of progress was neither swift nor easy.

I'm not a politician, I'm an artist. I don't have to be politically correct.

估计问题的性质不同。在这里，我们不关心检验特定的假设，而是关心估计参数的值。