问题
写作题
根据所给的图和提示词，各写一句话，必须用上所给的提示词。
1. world, population
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2. noise, harmful
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答案
1. The world has a population of 6.5 billion. / The population of the world is 6.5 billion.
2. noise is harmful to us / our hearing / our health.
(答案不唯一)