foreign substance

简明释义

混入物

英英释义

例句

1.If a foreign substance contaminates the food, it may pose health risks to consumers.

如果食物中污染了外来物质，可能会对消费者的健康构成风险。

2.The doctor advised the patient to avoid any products containing foreign substances that could trigger allergies.

医生建议患者避免任何含有可能引发过敏的外来物质的产品。

3.During the quality control process, they detected a foreign substance in the manufacturing line.

在质量控制过程中，他们在生产线上检测到了一种外来物质。

4.The safety inspection revealed a foreign substance in the water supply, necessitating immediate action.

安全检查发现水供应中有一种外来物质，需要立即采取行动。

5.The lab technician found a foreign substance in the sample, which could affect the results.

实验室技术人员在样本中发现了一种外来物质，这可能会影响结果。

作文

In our daily lives, we often encounter various substances that can affect our health and well-being. One such term that is frequently used in scientific and medical contexts is foreign substance. A foreign substance (外来物质) refers to any material that is present in a system but is not naturally found there. This can include pollutants, chemicals, or even biological agents that can have harmful effects on living organisms. Understanding the implications of foreign substances is crucial for maintaining a healthy environment and ensuring public safety.For instance, consider the impact of foreign substances in our water supply. Contaminants like heavy metals, pesticides, and industrial chemicals can seep into rivers and lakes, posing serious risks to both human health and aquatic ecosystems. When these foreign substances are ingested, they can lead to a range of health issues, including developmental problems in children, reproductive issues, and even cancer. Therefore, it is essential for governments and environmental agencies to monitor and regulate the presence of foreign substances in our water sources.Moreover, the concept of foreign substances extends beyond just environmental concerns. In the field of medicine, the introduction of foreign substances into the human body can have both therapeutic and adverse effects. For example, when a patient receives a vaccine, the vaccine contains foreign substances that stimulate the immune system to develop protection against specific diseases. However, in some cases, the body may react negatively to these foreign substances, leading to allergic reactions or other complications. This highlights the importance of thorough testing and research before introducing any foreign substances into medical treatments.In addition, the food industry is another area where foreign substances can pose significant risks. Food contamination can occur during production, processing, or distribution, leading to the presence of harmful foreign substances such as bacteria, viruses, or chemical residues. Consuming contaminated food can result in foodborne illnesses, which can be severe and even life-threatening. Thus, strict regulations and safety standards are necessary to minimize the risk of foreign substances in our food supply.In conclusion, the term foreign substance (外来物质) encompasses a wide range of materials that can have significant impacts on health and safety. Whether in our water, medicine, or food, the presence of foreign substances can lead to serious consequences if not properly managed. It is imperative for individuals, communities, and governments to be aware of these risks and take proactive measures to safeguard our environment and health from harmful foreign substances. By doing so, we can create a safer and healthier world for future generations.