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今天我们种下的每一粒种子都是对后代的承诺。
Every seed we plant today is a promise to future generations.
In the depth of solitude, I found the presence of all.
每一滴牛奶都讲述着一个奉献的故事——从农民到消费者。
The concept of legal validity is crucial for understanding the nature of law.
The coal industry must evolve to meet modern environmental standards, or it will become obsolete.