中文解释

有害的

the harmful effects of smoking.吸烟的害处

harmful gas有害气体

harmful effect不良影响；有害效应

harmful bacteria有害细菌；病菌

harmful substance有害物质

harmful chemicals有害化合物

harmful factor有害因素

harmful interference有害干扰

真题例句...and its harmful effects on productivity are well documented...第三套CET42014.12阅读理解

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真题例句...Attracting numbers of birds continually to the same spot can be harmful to them...CET42009.6听力题