He gave me a hearty slap on the back.

他热情地在我背上拍了一下。

《牛津词典》

Now if someone could only explain the science of that thing guys do when they kind of hug but slap each other on the back too.

不过我们好像也需要一个人来解释下男人在几近拥抱时在对方背上互拍这一细节中有何科学。

youdao

As another free action, it USES its tail to slap the rogue, who was trying to sneak up behind it, and pushes her back 10 feet.

他又用另外一个自由动作一尾巴把试图潜行到他身后的贼打飞出了10尺远。

youdao

Sensors at the midway point of the table detect the angle, speed, and trajectory of the not-exactly-oncoming puck, and instructs the mechanism how and where to fire the disc -- you slap it back, and the same sequence happens on your compadre's end.

ENGADGET: Airhockey Over a Distance

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