—— 请按键盘 空白键 开始游戏 ——

如果你想飞,就必须放弃拖累你的东西。
As to the gods, I do not know whether they exist or not, or what they are like.
Small changes in farming practices can lead to big impacts on global food security.
Security and privacy are fundamental to the trust that users place in the Internet.
科学中真正的回报是为比自身更伟大的事业做出贡献。
The ethical questions raised by CRISPR are not obstacles—they are essential conversations.