slap in the face

an unexpected rejection or affront

（意外的）拒絕；侮辱

slap on the back

congratulations or commendations

恭賀；贊揚(yáng)

they deserve a hearty slap on the back for their efforts.

他們的努力值得衷心贊揚(yáng)。

slap someone on the back

congratulate someone

恭喜某人

slap down

To restrain or correct by means of a sharp blow or emphatic censure

平息，壓制：用有力的一擊或斷然的指責(zé)來限制或糾正

“thought&I{[he]} was getting a little uppity and needed to be slapped down” (&b{New York Times})

“覺得&I{[他]} 正變得驕傲自大需要加以糾正” (&b{紐約時報})

To put a sudden end to; suppress

壓制：突然地結(jié)束；壓制

slap down divisive criticism.

壓制造成分裂的評論

slap on the wrist

A nominal or token punishment.

名義上或象征性的懲罰