—— 请按键盘 空白键 开始游戏 ——

The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.
粮食安全的未来蕴藏在海浪之下——前提是我们负责任地养殖。
要使婚姻长久,就需克服自我中心意识。