创新的关键不仅在于找到答案,还在于提出正确的问题。
亲代投资是理解两性交配策略差异的关键。
膨胀宇宙模型为宇宙的起源提供了一个可能的解释。
The most important thing is to enjoy your sport. If you don't enjoy it, it's very difficult to achieve good results.