解释:大部分鸟类都是雄性的,而雌鸽却是雌性的,说明了鸟类性别的特殊性。
The biggest risk is not taking any risk.
The only way to win is to learn faster than anyone else.
One of my most productive days was throwing away 1000 lines of code.
研究中的耐心不是被动的,而是对真理的积极追求。
"I am fascinated by the complexity of human relationships."