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试管婴儿的研究是出于帮助不孕夫妇的愿望。
The work on IVF was driven by the desire to help infertile couples.
The coal sector must adapt to global energy transitions while maintaining efficiency.
爵士乐就是自由。你要记住这一点。
"Every city has a sex and an age which have nothing to do with demography."
The artist is a receptacle for emotions that come from all over the place: from the sky, from the earth, from a scrap of paper, from a passing shape, from a spider's web.