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 整个言语行为包括发声的行为和表达意义的行为。
Sustainability isn't a choice anymore - it's our responsibility to future generations.
The study of the early universe is not just about understanding the past, but also about uncovering the fundamental laws that govern all of reality.
世界是一个非常令人困惑的地方,能够思考它是一种巨大的特权。
The past does not equal the future.