它们能在含有对大多数其他植物有毒的高浓度金属的土壤中茁壮成长。
They can thrive in soil with high concentrations of metals that are toxic to most other plants.
然而几乎所有的城市固体废弃物都包含一定量的重金属元素，这些元素在某些浓度时是有毒的。
However, almost all of the components of MSW contain some quantity of the heavy metals, which are categorized as toxic at certain concentrations.
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