It's not what you're looking for trouble, but something that you're not sure of, but in fact, it's not.
When we invest in sustainable farming, we're investing in the health of our planet and its people.
最有力的艺术往往来自边缘。
"The only limit to our realization of tomorrow will be our doubts of today."
学习数学的最好方法就是做数学。