I don’t complain, I don’t make excuses, I just keep going.
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
水产养殖成功的真正标准不仅是产量,还有栖息地的保护。