harmful：
adj.(尤指對(duì)健康或環(huán)境)有害的，導(dǎo)致?lián)p害的；
派生詞： harmfully adv. harmfulness n.
例句：
Accidental inhalation of the powder can be harmful.
意外的粉塵吸入可能有害。
Effluent from the sedimentation tank is dosed with disinfectant to kill any harmful organisms.
沉降池中的廢水中加入了消毒劑，以消滅所有有害微生物。
Cigarette smoke is also harmful to people's health.
香煙的煙霧對(duì)人們的健康同樣有害。
Any conduct harmful to the public interest must not be permitted.
凡是損害公共利益的行為，都應(yīng)該制止。