He might be...a bit on the slow side, but my boy Forrest is going to get the same opportunities as everyone else. He's not going to some special school to learn how to retread tires. We're talking about five little points here. There must be something can be done.
The best way to learn mathematics is to do mathematics.
无偿工作的价值在经济衡量中常常不可见,但它却是社会的支柱。