The harmful effects of caffeine had long been documented in textbooks . 咖啡因的有害作用早已见诸教科书。
Watch out for harmful tendencies and deal with them the moment they crop up . 不良倾向一冒尖儿就不要放过它。
It is difficult and also harmful to leave these commands vacant for long . 让这些指挥官职位长期空缺，很不好办，也很有害。
Further, both gamma rays and neutrons can produce harmful effects in living organisms . 此外，r射线和中子都能损害生物组织。
Such chemicals taken up by plants can be harmful to humans and animals . 这种化学物质被植物吸收上来，就可能对人畜产生危害。
An aqueous caustic solution removes carrier gas impurities harmful to the detector cell . 苛性碱溶液去除运载气体中对检测元件有害的杂质。
An example of negative eugenics would be the attempt to eradicate a harmful recessive gene . 消极优生学的范例是试图破坏一种对人体有害的隐性基因。
The earth is a spacecraft too, our atmosphere acting as a shield against harmful radiation and space debris . 地球跟宇宙飞船完全一样，其周围的大气对有害的辐射和宇宙碎片起到防护作用。
Though reluctant to respond to what was felt to be a wave of harmful sensationalism, the information was given . 公司尽管很不情愿，感到这是追求危言耸听的有害浪潮，但还是提供了有关情况。
It's limited, normally, to the early months of pregnancy and before long will go away, leaving nothing harmful behind . 它一般只限制在怀孕初期的几个月，不久就会自行消失，不会留下任何病症。
