We've got to do more than that! retorted Rodney, thumping a fist against the palm of his hand.

罗德尼说我们要做的更多，他的拳头重重地撞击自己的手掌。

It thumps gently against the trunk of the tree.

它轻轻地撞击树干。

Tim wagged his tail and thumped it hard against her ankles.

蒂姆摇着尾巴，用力敲击她的脚踝。

They followed as fast as they could. Jack’s heavy pack thumped against his back as he ran.

他们尽可能地紧随其后。杰克沉重的背包在他奔跑时砰砰作响。

She was returning: of course my heart thumped with impatience against the iron rails I leant upon.

她要回来了：当然，我的心在我倚靠的铁栏杆上不耐烦地跳动着。