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A substance that is not formed by natural growth.
不是通过自然生长形成的物质。
youdao
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Multiamine is also a sort of plant growth regulating substance.
而多胺类也是一类重要的植物生长物质。
youdao
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Multiamine is also a sort of plant growth regulating substance.
而多胺类也是一类重要的植物生长物质。
youdao