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ENGLISH PHRASES 英文词组〔permissible〕permissible levels of nitrates in water 水中硝酸盐含量的容许度牛津高阶〔uptake〕research in relation to the uptake of nitrate into vegetables. 关于蔬菜中硝酸盐含量的研究柯林斯高阶〔uptake〕research in relation to the uptake of nitrate into vegetables关于蔬菜中硝酸盐含量的研究外研社新世纪 |