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英语单词“harmful”的意思是：有害的；有害的；伤人的。
读音：英 [ˈhɑːmfl] 美 [ˈhɑːrmfl]
例句：He recognized that the chemical was harmful to human health.
翻译：他认识到这种化学物质对人体健康有害。
另外，“harmful”也可以作为形容词使用，它的同义词有“noxious”和“deleterious”。它的反义词是“beneficial”。它经常被用于描述某事物对某个体或物的不好的影响，严重的副作用等等。举例如下：Smoking can be harmful to one’s health. 意思是抽烟可能会对人体健康造成损害。
需要十个例句作为日常生活或日常工作场景中的应用实例。如在旅游场合或回答广告话题的举例可能有些相匹配不相关的味道。这种形式的文字并没有刻板遵循某个特定语境，但可以通过多种方式使用。以下是十个使用“harmful”的例句：
1. The excessive use of mobile phones in schools can be harmful to students' eyesight.
2. Exposure to harmful chemicals in the workplace can have serious health consequences.
3. Eating too much fast food can be harmful to your body's nutritional needs.
4. Eating foods with artificial flavors and colors may be harmful to one's health.
5. Being unemployed for a long period of time can be harmful to a person's mental health.
6. A sudden burst of sunlight could cause damage to sensitive outdoor plants and cause harmful rays to penetrate our skin.
7. The harmful effects of social media on children's mental health and socialization needs should not be ignored.
8. The harmful effects of prolonged sitting at work or during leisure activities need to be recognized and addressed.
9. Exposure to excessive amounts of noise pollution can harm one's hearing and cause stress and anxiety.
10. In the workplace, not communicating effectively with colleagues can be harmful to teamwork and productivity.
总的来说，“harmful”这个单词在英语中非常常见，在日常生活和工作中都经常用到。只要是在适当的地方使用，通常都能产生很好的效果。
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