The real tragedy of the poor is that they can do nothing but wait for the rich to give them something.
求和者就是希望鳄鱼最后一个吃自己的人。
"Picture books are the first art gallery many children ever visit."
The environment shapes behavior through the mechanism of reinforcement.
People who cannot find time for recreation are obliged sooner or later to find time for illness.
A story is not finished until it has taken the worst possible turn.
任务必须是困难的,因为只有困难才能激发高尚的心灵。
饲料创新是负责任水产养殖的无名英雄。