这加剧了两个超级大国之间的矛盾。
It has increased the contradictions between the two superpowers.
较之二十世纪大半时间，现在的大国之间没有太多正面矛盾。
Compared with most of the 20th century, today's big powers have few head-on conflicts.
较之二十世纪大半时间，现在的大国之间没有太多正面矛盾。
Compared with most of the 20th century, today's big powers have few head-on conflicts.
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