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Efficiency and ethics must go hand in hand in modern agriculture.
La belleza de las palabras radica en su capacidad de evocar emociones.
The best way to predict the future is to invent it.
对幼儿来说,妈妈的声音是具有特殊意义的参照物。
The key to solving complex problems is to break them down into smaller, more manageable parts.