Overfishing is a solvable problem, but it requires global commitment and local action.
"I don't want to just be a singer. I want to be an entertainer."
生命中最伟大的荣耀不在于从不跌倒,而在于每次跌倒后都能站起来。
"A good book is an event in my life."
The central task of education is to implant a will and facility for learning; it should produce not learned but learning people. The truly human society is a learning society, where grandparents, parents, and children are students together.
光波,无论是以太波还是其他波,在所有情况下都是时间上的周期性过程。