有害

Concrete aggregate contains active aggregate like opal which can react with alkali in concrete and generate new material and hazardous gas expansion to cause damages to concrete like knurl and crack.

混凝土骨料中含有活性骨料，如蛋白石等，能与水泥中的碱反应，生成新的物质，产生有害的体积膨胀，造成混凝土隆起、开裂，引起混凝土破坏。

If the use of drugs stopped coughing, harmful pathogens Reserve will remain in the body, so that the body has become sputum and labrum cans, to induce the excitation of infection, pneumonia brought about by problems.

如果使用药物止住了咳嗽，有害的病原微生物就会储留在体内，使体内成了痰与盂罐，为引发激发感染、肺炎带来了隐患。

World Health Organization clinical trials to prove substantial, resulting in tooth decay due to the large population of harmful bacteria, the functional characteristics of type toothbrush display type in its unique design and high-quality brush sanding dual filament tip to the forward bending of the back of hard-depth Brush laniary site, around the teeth close to teeth, dental plaque thoroughly cleaned; arc mitigation brush too much force caused by gingival bleeding and abnormal wear and tear; follow internal alveolar brush with regulation, in-depth teeth cleaning teeth bacteria grouper; display type brush to help clean and dry quickly to curb the breeding of germs.

世界卫生组织大量临床实验证明，产生蛀牙的原因是有害细菌的大量繁殖，功能型牙刷的特色在于其独特展示型刷头设计及优质双尖磨毛细丝，能向前弯曲，深入后排难刷大牙部位，包住牙齿紧贴牙缝，彻底清洁牙菌斑；弧型刷头缓解用力过猛而导致的牙龈出血和异常磨损；跟着牙槽内部排列调节刷头，深入牙缝清洁牙菌斑；展示型刷头，有助于快速清洁和晾干，抑制细菌滋生。

And waxy lanolin has strong adsorption, can dust in the air, viruses, bacteria and other harmful ...

羊毛脂及蜡质都具有较强的吸附性，能将空气中的尘埃、病毒、细菌等有害。。。

Lanolin and wax has a strong adsorption, can air, dust, viruses, bacteria and other harmful ...

羊毛脂及蜡质都具有较强的吸附性，能将空气中的尘埃、病毒、细菌等有害。。。

Therefore, young parents do not give one month old infant lanugo shaving or scratching the eyebrow, which is a detrimental thing.

因此，年轻的父母不要给满月的婴儿剃胎毛、刮眉毛，那是一件有害无益的事情。

You know what lard does to your arteries?

你知道猪油对动脉多有害吗？

In addition, many small businesses there is no perfect environmental protection facilities, high levels of lead smelting process steam, lead dust, sulfur dioxide and other harmful substances into the atmosphere, not only the job-site labor conditions also cause serious environmental pollution.

此外，许多小型企业没有完善环保设施，铅冶炼过程中的蒸汽高，到大气中铅尘，二氧化硫和其他有害物质，不仅是施工现场劳动条件，同样会造成严重的环境污染。

South American leaf blight,caused by Microcyclus ulei,is one of the most serious disease of Para rubber in America,and the pathogen is an important quarantine pest of the Asia-pacific region.

橡胶南美叶疫病菌在美洲地区引起橡胶树严重的落叶病害，是亚太地区国家重要的检疫性有害生物。

As traditional fluorescent tubes contain Mercury , and which is every harmful once any leakiness occurred , however, LED tubes do not contain any harmful materials, and will not cuase pollution to environment , so,the LED ligths is recognised as the green lighting products in 21st century .

传统日光灯中含有水银，泄漏会危害人体，而LED日光灯不含任何有害物质，对环境起到保护作用，被公认为二十一世纪的绿色照明产品。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷