国际政治是一个残酷而无情的舞台，各国不断努力最大化自己的权力和安全。
International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.
Sustainability isn't a choice anymore; it's a responsibility we all must embrace.
投资于低碳解决方案不仅对环境有益，也是良好的商业决策。
可持续林业不是一种选择；它是一种义务。