1. Oxygen plays a key role in metabolism, but can also be an unhealthful agent. 氧分在新陈代谢方面起着关键作用,但也是引起不健康的因素。
2. For example, fats in some foods like fish and nuts are considered good for human health. Unhealthful fats include saturated and trans fats. 举例来说,某些食物,如鱼和核桃,其中的脂肪就认为是对人体健康有利的。而不利于健康的脂肪包括饱和脂肪和转化脂肪。
3. SPECIAL REQUIREMENTS: Must be able to work safely in an environment requiring exposure to biological conditions that may be unhealthful or hazardous. 特殊要求︰必须有能力在曝露于不健康甚至有害健康的生化环境下安全的工作。
英英解释
adj.
1. not sanitary or healthful
2. detrimental to good health
3. detrimental to health