铅是对植物和人体健康有害的重金属元素。
Lead is one of heavy metals which are harmful to plants and human body.
肮脏的空气对植物和动物也是有害的。
肮脏的空气对植物和动物也是有害的。
那是不用对人体有害的化学植物栽培的。
They were grown without using any chemicals that are harmful to our health.
那是不用对人体有害的化学植物栽培的。
They were grown without using any chemicals that are harmful to our health.
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