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TOEFL IELTS BNC: 6454 COCA: 5809

harmful

Word family 
harm·ful /ˈhɑːmfəl $ ˈhɑːrm-/ ●●○ adjectiveadj  
HARM/BE BAD FORcausing harm 有害的；可致伤害的
 the harmful effects of smoking
吸烟的害处
harmful to
 chemicals that are harmful to the environment
对环境有害的化学品
 THESAURUS
harmful causing physical harm – used especially about things that cause harm to your health, the environment etc 〔尤指对健康、环境等〕有害的
Smoking is harmful to your health.
吸烟有害健康。
drugs with harmful side effects
有不良副作用的药物
be bad for somebody/something to have a harmful effect on someone or something. This phrase is very commonly used in everyday English when saying that something is harmful 对某人/某物有害〔常用于日常英语〕
Everyone knows that too much alcohol is bad for you.
人人都知道饮酒过量对身体有害。
damaging used about things that cause permanent physical harm, or that have a bad effect in other ways, for example on people’s opinion of someone 造成损害[伤害]的；产生不良影响的
Acid rain has a damaging effect on trees and the soil.
酸雨对树木和土壤有破坏作用。
The allegations were very damaging to his career.
这些指控对他的职业生涯极为不利。
nConstant criticism is damaging to a child’s self-esteem.
detrimental formal causing harm or having a bad effect on something 有害的，不利的
Employers are worried that the new laws will have a detrimental effect on their business.
雇主担心新法令对他们的生意会有不利影响。
chemicals that are detrimental to the environment
对环境有害的化学品
npolicies that have been detrimental to the interests of old people
negative a negative effect is one that is bad and causes problems 〔影响〕有害的，不良的
The car tax had a negative effect on car sales.
汽车税对汽车销量有消极影响。
the negative impact of the recession in the US
美国经济衰退的负面影响
hazardous hazardous substances are likely to be dangerous to people’s health and safety 〔物质〕危险的
Hazardous waste needs to be disposed of safely.
危险废料应妥善处理。
hazardous chemicals
危险化学品
toxic toxic substances, smoke etc are poisonous 〔物质、烟等〕有毒的
toxic waste
有毒废料
toxic fumes
有毒烟雾
Toxic chemicals spilled into the river.
有毒化学品泄漏，流入了河中。
pernicious /pəˈnɪʃəs $ pər-/ formal used about something that has a gradual bad effect which is not easy to notice, especially on people’s morals, or on their health 〔尤指对人们的道德品质或健康〕有害的〔通常不易察觉〕
the pernicious effects of violent video games
暴力电子游戏的危害性
the pernicious effect of secondhand smoke
二手烟的危害性
Examples from the Corpus
harmful• The creation of the Premier League is therefore irrelevant and potentially harmful.• The problem is, what is good to eat and what is harmful?• Yet medicine is not a precise science and some treatments recommended, though they benefit most casualties, may occasionally be harmful.• Scientists tend to agree that most diets don't work and can be harmful.• Thorough cooking kills harmful bacteria, so be sure ground meat and poultry are cooked to the well-done stage.• Scientists have recommended that new technology be used to target harmful bacteria.• The destruction of the ozone layer will have a very harmful effect on the environment.• Doctors have warned against the harmful effects of smoking.• You should always use sunscreen to protect your skin from the harmful effects of the sun.• The new air pollution controls are designed to limit harmful emissions from industry and motor vehicles.• The cilia in the respiratory tract hasten the exit from the body of possibly harmful foreign material.• Is it a harmful geographic stereotype to suggest that southerners are a little bit poky?• Many of the products that we have around our homes are harmful if swallowed.• Residents living in the Jennyfields area of Harrogate were warned that the pills could prove harmful if taken by children.• The protests were aimed at ending the dumping of harmful industrial waste at sea.• Pushing kids so hard from such an early age is likely to have some harmful results.• If one is inherently harmful, so is the other.• As yet there is no proof that genetically modified foods are harmful to humans.• 80% of Americans think that television is harmful to society and especially to children.• The sun's rays can be very harmful to the skin.
harm·ful adjectiveadj →THESAURUS1
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