她的手指在钢琴键上轻快地移动。

Her fingers swept the keys of the piano.

youdao

轻快地移动你的双臂，当您运行，你的腿将最好的表现。

Move your arms briskly when you run, and your legs will perform at their best.

youdao

轻快地移动你的双臂，当您运行，你的腿将最好的表现。

Move your arms briskly when you run, and your legs will perform at their best.

youdao