我只是一个努力实现梦想的孩子。
A ship is always referred to as "she" because it costs so much to keep one in paint and powder.
过去是一个不会停止纠缠你的幽灵。
NP完全性不仅仅是一个理论上的好奇心;它对实际计算有着深远的影响。