宇航员们坐在国旗下，精神抖擞地回答了几个问题。

Sitting under a national flag, the astronauts appeared in good spirits and answered several questions.

youdao

有了适量的睡眠，你就应该在闹钟响前的五分钟精神抖擞地醒来。

With the right amount of sleep you should wake up fresh and alert five minutes before the alarm rings.

youdao

那匹马精神抖擞地昂起头来。

The horse perked up its head.

《新英汉大辞典》