blister (on the skin) / bloat / bubble (e.g. financial)

blister

to feign ignorance, to play dumb, to pretend to not know or understand something

(onomatopoeia) to gulp

You should treasure every encounter, for it will never recur.

vicissitudes, the way that the world or a person prospers one day and declines the next

dotting the i's and crossing the t's

successive series of questions and responses

China / to give something, to do something for someone

complaint, especially from a customer / (law) claim; legal demand for ownership or compensation