篮球运动很容易学习,规则非常简单,可以写在一个信封的背面。
The beauty of computational theory lies in its ability to abstract and generalize, turning specific problems into universal solutions.
不耽误农业生产的季节,粮食就会吃不完;密网不下到池塘里,鱼鳖就会吃不完;按一定的季节入山伐木,木材就会用不完。