trying hard (verb) exert: make use of
Sinonime: apply, apply oneself, bring into play, bring to bear,
dig*,
employ,
endeavor,
exercise, expend, give all one's got, give best shot,
labor, make effort, peg away,
plug*, ply, pour it on,
push, put forth, put out,
strain,
strive,
struggle, sweat it,
throw,
toil, try hard,
use,
utilize,
wield,
work