B2 [ C ] a forceful hit with a fist (= closed hand)一拳，一击

[ U ] the power to be interesting and have a strong effect on people感染力，活力

[ C or U ] a cold or hot drink made by mixing fruit juices, pieces of fruit, and often wine or other alcoholic drinks宾治酒，潘趣酒（一种果汁、水果与酒勾兑成的冷饮或热饮）

[ C ] a piece of equipment that cuts holes in a material by pushing a piece of metal through it打孔器

B2 to hit someone or something with your fist (= closed hand)用拳猛击

mainly US to hit with your fingers the buttons on a phone or the keys on a keyboard按，敲击（按钮或键）

to make a hole in something with a special piece of equipment（用特制工具）在…上打孔，打（孔）