这个小男孩非常聪明，三岁就能数到一百。

The little boy is very ___smart and can count to 100 at age three.

她的新帽子看起来很时髦。

Her new hat looks very ___smart.

他敏捷地跳过了水坑。

He made a ___smart leap over the puddle.

她给出了一个聪明的解决方案，节省了大量时间。

She came up with a ___smart solution that saved a lot of time.