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例子
The shower drain was blocked with hair and soap scum, causing water to pool at the bottom of the tub.
Over time, hair and soap scum can clog the bathroom drain up, causing water to drain slowly.
She scrubs the bathtub to remove soap scum and stains.
He cleaned the basin thoroughly to remove soap scum and toothpaste stains.
The maid scoured the bathtub with a strong cleaner to remove soap scum.
