将水槽或浴缸里的水排干。 准备居家清洁用具。 把醋和另外一种具有疏通效果的物质倒入排水管中。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
If it's really slow-draining, this may take a while, but if you remove the water, your drain-clearing mixture will be able to unclog faster. You have several options for creating a non-commercial drain opener. Most involve vinegar and another substance that create a chemical reaction when combined. See if you have any of these drain-opening agents on hand:  Vinegar (white or apple cider vinegar work) is the acidic base for creating the foaming reaction. Lemon juice is acidic like vinegar, but sm