英语词汇biotic index怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	biotic index
释义	biotic index noun [ C ] environment specialized uk/baɪˌɒt.ɪk ˈɪn.deks/ us/baɪˌɑː.t̬ɪk ˈɪn.deks/ 生物指数 a way of measuring the pollution (= dirty substances) in water, e.g. a river, by counting the organisms in it
随便看	hold someone in high/low repute hold someone off hold someone over hold someone ransom hold someone/something back hold someone/something down hold someone/something in contempt hold someone/something up hold someone/something up to ridicule hold someone to ransom hold someone to something hold something back hold something down hold something out hold something over hold something up hold something up as something hold/stand fast hold/stand firm hold still hold sway hold that thought hold the balance of power hold the floor hold the fort

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