Lucy scrubs her dishes, and then leaves "them in the dying rack to dry." To scrub, "scrub," as a verb means to clean, usually by moving your hand back and forth over what you are trying to clean. It means to clean with using some muscle, we would say - using some energy - using some force to clean it. There's also a noun, scrubs, with an "s" at the end, "scrubs," that means the clothing - the special clothing that doctors wear, especially doctors that are during surgery. They wear scrubs, that's what we call those pieces of special clothing. Often, it's blue or white clothing.
adj. 塑料的,可塑的,造型的,整形的,易受影响的