a very small amount compared to what is needed
必要なものに比べてごくわずかな量 (hitsuyou na mono ni kurabete goku wazuka na ryou)
"The money they raised was just a drop in the ocean compared to the total cost."
"彼らが集めたお金は、総費用に比べれば海の一滴にすぎなかった。" (karera ga atsumeta okane wa sou hiyou ni kurabereba umi no itteki ni suginakatta)
As I understand; based on what I know
the use of willpower to overcome physical problems
when the situation becomes very difficult or challenging
to get control or advantage over someone
to express anger or frustration so that you feel better
Used to strongly agree with someone