这位hyperkinetic学生在课堂上总是坐立不安，不停地摆弄铅笔。

The ___hyperkinetic student couldn't stop fidgeting with his pencil during class.

那个小孩精力过度旺盛，整天跑来跑去停不下来。

The ___hyperkinetic child couldn't sit still and kept running around all day.