孩子们用小石子在水面上打水漂。

The children ___skipped small stones across the water surface.

小石子被踢到后，在人行道上蹦跳着散开。

The small stones ___skittered across the pavement after being kicked.

他喜欢在黎明时分让假蝇在湖面上快速掠过。

He likes to ___skitter the artificial fly across the lake's surface at dawn.