1. Oxygen is one of the important elements in the physical world，which is very active chemically.
氧气是自然界中一种十分重要的物质，其化学性质十分活跃。
2.The finding could also lead to drugs tailored to attack specific types of cancer; thereby lessening our dependence on tissue-destroying chemotherapy and radiation.
这个发现使我们也可以专门制作药物来抵抗某些特定的癌症，因此可以减轻病人对损害组织的化疗和放射的依赖。
3.Heat it with hot water for several minutes，cool，and add 1or 2 drops of ferric chloride TS：a violet-red color is produced.
用热水加热几分钟。冷却后，加入一到两滴？（不知道怎么翻啊）,便会呈现出紫红色。
1. Oxygen is one of the important elements in the physical world，which is very active chemically.
氧气是构成现实世界的一种重要元素，具有很强的化学活性。
2.The finding could also lead to drugs tailored to attack specific types of cancer; thereby lessening our dependence on tissue-destroying chemotherapy and radiation.
比较复杂，翻译不好
3.Heat it with hot water for several minutes，cool，and add 1or 2 drops of ferric chloride TS：a violet-red color is produced.
水浴数分钟，冷却，然后加入1-2滴FeCl3， TS：紫红色生成
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1、精确度 2、滴定 3、指示剂
1. Oxygen is one of the important elements in the physical world，which is very active chemically.
氧气是物质世界最重要、最活泼的一种元素，
2.The finding could also lead to drugs tailored to attack specific types of cancer; thereby lessening our dependence on tissue-destroying chemotherapy and radiation.
研究发现应该引导用特效药来攻克一些具体的癌症，因此能减少化疗以及激光对我们人体组织的损伤。
3.Heat it with hot water for several minutes，cool，and add 1or 2 drops of ferric chloride TS：a violet-red color is produced.
用热水加热几分钟，冷却，然后加上一到两滴氯化铁溶液：紫红色就生成了。
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