무릎
the flat area between the waist and knees of a seated person
바퀴, 랩
a single circuit of a track or racecourse
철썩거리다, 핥아 마시다
to flow over or against something with a gentle splashing sound
한 바퀴 앞지르다, 랩하다
to overtake (a competitor in a race) to the extent of gaining a lead of one or more laps