lead coerces是什么意思 lead coerces怎么读
lead coerces的用法和样例
- And some tested supplements were contaminated with cadmium or lead.
该网站所附录的一个试验还表明，这些草药还被镉或铅污染。 - There will always be a small amount of lead contamination from the refining process of tin.
在锡的精炼工艺中总是会导致少量的铅污染。
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