英语词汇“essential element”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	essential element
释义	Collins Concise English Dictionary © HarperCollins Publishers:: essential element n any chemical element required by an organism for healthy growth. It may be required in large amounts (macronutrient) or in very small amounts (trace element)
随便看	dyce dye dyeable dyed dyed-in-the-wool dyeing dyeline dyer dyerma dyer's-broom dyersburg dyer's greenweed dyer's moss dyer's rocket dyer's-weed dyer's woodruff dye sensitizing dyestuff dye transfer dyewood dyfed dying dyke dyked dykey

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