To start something that creates many new problems.
多くの新しい問題を引き起こす何かを始めること。 (Ooku no atarashii mondai o hikiokosu nanika o hajimeru koto.)
"By questioning the policy, he opened a can of worms."
"政策を疑問視することで、彼はワームの缶を開けた。" (Seisaku o gimonshi suru koto de, kare wa **wāmu no kan o aketa**.)
to pay attention to small details or finalize things perfect...
to understand something that is complicated or unclear
Don’t lose hope until the end.
someone who is emotionally strong and unyielding
An undocumented way of accessing a system or software, usual...
something that is too expensive or not worth its price
