bouncing
/ˈbaʊnsɪŋ/adjective
1- (of a ball) rebounding up and down（球）弹跳的。
1.1
- informal (of a cheque) returned by a bank because there are insufficient funds in an account to meet it〈非正式〉（支票）遭拒付被退回的。
1.2
- (of a baby) vigorous and healthy（婴儿）有活力的; 健康的。
1.3
- lively and confident活跃的; 自信的：
by the next day she was her usual bouncing, energetic self.
第二天, 她又是原来那个自信而又充满活力的自己了。