精选优质文档-倾情为你奉上Unit 1anklen. the part at the bottom of your leg where your foot joins your legbankn. a set of machines arranged close together in a rowboltv. run away quicklybuttn. (sl.) the buttocks, the part of the body on which a person sitscalfn. the thick part at the back of the leg between the ankle and the kneecareenv. (of a ship) turn over or tilt colleaguen. someone who works in the same organization or department as youconfusionn. a situa