给我留下最深刻印象的，要数可爱的“海宝”了，我在上海的大街小巷都会看到这些蔚蓝色的吉祥物，城市的每个角落，我都能看到 它活泼的身影。
Perhaps the most lingering impression for me is Haibao, the spritely blue mascot of World Expo 2010 Shanghai China that greets visitors everywhere across the metropolis.
软件开发充满了尚未意识到的未知数—通常会有这种情况，您认为您在开始的时候已经理解了，却发现问题不同于您的第一印象(通常更复杂)。
Software is rife with unknown unknowns - situations you think you understand at the outset only to discover that the problem is different from your first impressions (and typically much harder).
在研发经费投入上增长最令人印象深刻的国家要数南韩了。
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