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Small changes in farming practices can lead to big impacts on global food security.
循环经济原则不是可选的,它们对生存至关重要。
你不能对任何情况生气,你得嘲笑它。
The past is a shadow that follows us, no matter how fast we run.
The core of drones is not how high they fly, but how well they are used.
历史的终结将是一个非常悲伤的时刻。