—— 请按键盘 空白键 开始游戏 ——

一个人胜券在握时,总是应该公平行事。
One should always play fairly when one has the winning cards.
Small changes in farming practices can lead to big impacts on global food security.
承认规则是法律体系中的终极规则,它确定了有效法律的标准。