Whether competition by land will lead to co-operation or conflict remains an open question.
大陆之间的竞争将会带来合作还是冲突，这仍是一个不得而知的问题。
Some people claim that competition is more important than co-operation in the present-day society.
一些人认为现今社会竞争要比合作重要。
That is a pity, since co-operation can mitigate the suspicions that go with competition.
这很令人遗憾，因为合作能减轻竞争带来的怀疑。
I'm honored today to co-host today's speech competition.
我非常荣幸能和你共同主持今天的这个演讲比赛。
I'm honored today to co-host today's speech competition.
我非常荣幸能和你共同主持今天的这个演讲比赛。
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