He gave the child a slap on the back.

他在孩子的背上打了一巴掌。

youdao

I was nearly knocked down by a slap on the back.

我被背后突然的一击差点打倒。

youdao

We got a slap on the back for staying late at work.

我们因工作到很晚而受到了表扬。

youdao

The boy was tall and tough, rumored to have carried out one of the killings and likely to become Capone next semester, and yet there he was in the cell, cowering and sobbing after the chief gave him a light slap on the back of the head.

NEWYORKER: Cell One

Mrs Albright gave her embattled ally a figurative slap on the back, praising Japan for its loyalty and bravery.

ECONOMIST: The ungrateful Japanese

Regardless of whether you prefer print or digital formats, we reckon that all readers deserve a hearty slap on the back.

ENGADGET