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A: I m going shopping in the mall this afternoon, want to join me? B: No, thanks, I have plans already. mall n. (由许多商店组成的)购物中心 A: That child looks very unhealthy. B: Yes, he does not have enough to eat. He is suffering from malnutrition. malnutrition n. 营养不良 A: What distinguishes mammals from other animals, teacher? B: Mammals feed their young on milk. mammal n. 哺乳动物 A: I was able to park the car in one single maneuver. B: Well done, you have improved. maneuver n. 1.谨慎而熟练的动作;2.策略，花招;3.[pl.]演习 vt. 1.设法使变动位置;2.(敏捷或巧妙地)操纵，控制 vi. 1.设法变动位置;2.用策略，耍花招 A: Are you telling me you saw a ghost? B: Yes, it manifested itself on me during the night. manifest a. 明显的，显然的，明了的 vt. 1.显示，表明，证明;2.使显现，使显露 A: I m not able to untie this knot. B: If you manipulate the knot a bit more you may be able to open it. | 
