vt. & vi.弹回 spring back when sent against sth hard

　bounce　用作动词的基本意思是“弹回”，指使某物碰到硬物弹回，引申可表示使某人活跃地上下跳动。

　～ about　蹦蹦跳跳
　～ back　失意后恢复过来，回升
　～ off　弹开
　～ up and down　上下蹦跳
　～ along　沿着某方向跳动
　～ into　跳动着进入

　A rubber ball bounces well.　橡皮球弹力好。
　The child bounced on the bed.　孩子在床上蹦蹦跳跳。
　He bounced the ball against the wall.　他把球掷到墙上让它弹回来。

 ♣ bounce along　(v.+prep.)
　以上上下下的动作沿着某方向移动　move in the specified direction with an up and down motion
　The new car bounced along the bumpy mountain road.　这辆新车在崎岖的山路上颠簸行驶。
 ♣ bounce back　(v.+adv.)
　受挫折后恢复原状　recover well after a setback
　Although fatigue shows readily on Carter, he bounces back quickly.　卡特虽然容易显出疲劳的样子，但他恢复得很快。
 ♣ bounce into　(v.+prep.)
　以上上下下的动作进入　move into with an up and down motion
　Bertha came bouncing into the room.　伯莎蹦蹦跳跳地进了房间。

1. C 弹跳　 act of bouncing
2. U 活力，生气　 liveliness; vitality

　give ～　蹦跳
　lose ～　失去弹性
　on ～　在弹起时
　with ～　用…方式弹起

　He caught a ball on the first bounce.　球第一次弹起来他就把它接住了。
　He's got a lot of bounce.　他浑身都是劲。

　［同义词］ v. bound, bump n. rebound, liveliness
　［反义词］ n. calm, calmness, tiredness
　［词源］中古英语bunsen（重击）