土壤的酸性可以通过在它上面撒石灰来中和。
烧石灰产品最古老的用法之一就是农业撒石灰。
One of the oldest uses of burned lime products is in agricultural liming.
听说家里撒石灰可以避，一点都没用，我房间墙角都撒了石灰，它还是在我房间活动。
I heard at home to avoid spreading of lime, that no use, my room walls, sprinkled with lime, it is in my room activities.
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