最可持续的森林是既能满足人类需求又能屹立不倒的森林。
Those who keep learning,will keep rising in life.
There is no such thing as abstract art - all art is concrete in its own way.
轧棉机的发明是一系列无法预见的 circumstances 的结果。
Innovation is not just about creating new products; it's about rethinking how we solve old problems.