The fighting was halted by a 1953 armistice but with no peace treaty, the two Koreas remain technically at war, amid decades of isolation and hostility.

VOA: standard.2009.09.26

Because sometimes the value of a combination is different then the value you would get by just thinking about each one of the parts in isolation and then adding them up.

因为有时一个组合的价值会不同,那么你得到的价值是只单独考虑每一部分,然后把它们相加所得。

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