中国是世界上人口最多的国家：
China is the most populous country in the world.
China is one of the most populous countries in the world.
China is the world's most populous country.
China is the world's most populous nation.
四种好吗？选一个！
中国是世界上人口最多的国家：
China is the most populous country in the world
China is one of the most populous countries in the world.
China is the world's most populous country
China is the most populous country in the world
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