to bring back; to restore
clear; sonorous; full-sounding; resonant; bright
to resound; to echo; to reverberate
eardrum; tympanic membrane
to start a journey; to embark on a trip; to set forth; to hit the trail
existing (between); interposition; intervention; involvement
if it is the case that ...
slow; time-consuming; late (in the day); towards the end (of the day or night); later (than expected or usual); late
irritating; irritated; frustrating; vexing; (feeling things are) not quick enough; (feeling) too slow-going
vague; ambiguous; shady; disreputable; fuzzy
firm; unshakeable; resolute
(those) who are; (that) which is; in the capacity of
change; conversion; transformation; transformation