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大扫除时,暗沟常常是清洁不到的死角,锄头放不进,即使放得进,也往往会把淤泥越推越远,用“暗沟清淤器”能很方便地解决这个问题。
When cleaning, the undercut is often a clean corner, the hoe does not fit into it, and even if put in, the mud tends to push further and further. Using the “underdrain dredger” can easily solve this problem.