名词
中文翻译：Unknown
同义词：
['open circulatory system', 'open blood vessels system']
例句：
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1. The doctoradvised us to exercise regularly to maintain our open vascular system.
医生建议我们定期锻炼，以维护我们的开放血管系统。
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2.The study found that regular physical activity can help improve the function of the open vascular system in older adults.
研究发现，定期进行身体活动可以帮助改善老年人开放血管系统的功能。
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3. In order to prevent heart disease, it is important to maintain a healthy lifestyle and keep the open vascular systemin good condition.
为了预防心脏病，保持健康的生活方式和保持良好的开放血管系统状态是非常重要的。