他正在像蛇一样吐舌头。

The man is ___flicking his tongue like a snake.

她无聊地用手指轻弹着桌面。

She was ___flicking the table with her fingers out of boredom.

他用手指轻轻一弹，把桌上的面包屑弹掉了。

He ___flicked the crumbs off the table with his finger.

她轻轻一弹手指，把面包屑从桌面上弹走。

She ___flicked the breadcrumbs off the table with her finger.