切膚之痛

keenly felt pain / bitter anguish

to cut / to slice / tangent (math)

definitely / absolutely (not) / (scoffing or dismissive interjection) Yeah, right. / Tut! / to grind / close to / eager / to correspond to / see also 反切[fan3 qie4]

skin

(possessive particle, literary equivalent of 的[de5]) / him / her / it

ache / pain / sorrow / deeply / thoroughly