最后，我们将视线拉回联想的主战场。上世纪八十年代，第一台翻盖式笔记本电脑奠定了现代 PC 的基础形态：一块屏幕，一块键盘，中间用转轴连在一起。在随后的四十多年里，整个行业都在这个框架里打转，把屏幕做得更清晰、把键盘做得更薄、把处理器塞得更满。
Two new scientific studies published in the academic journal Ecological Solutions and Evidence, show the huge impact that change has had for nature across the 1500-hectare landscape, with plant diversity increased by over 40% and a five-fold increase in the number of butterflies in the absence of sheep.
，这一点在WPS官方版本下载中也有详细论述
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