名词
中文翻译：注射器
同义词：
['injection', 'producer', 'distance例句：1. The distance between the two cities is approximately 200 kilometers.（这两个城市之间的距离大约是200公里。）']
例句：
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1. The distance between the two cities is approximately 200 kilometers.
这两个城市之间的距离大约是200公里。
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2.The new drug has a significant impact on the treatment of cancer patients.
这种新药对癌症患者的治疗有显著影响。
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3. The distance between the two countries is relatively small, making it easy to travel between them.
两国之间的距离相对较小，这使得它们之间的旅行变得容易。