My brother had a lot of debt, but my father bailed him out before the bank took everything he owned.
My friend got in trouble with the law and was arrested, so I bailed him out.
to bail out は「保釈する」「（経済的困難から）救済する」などの「救う」の意味があります。
ーMy brother had a lot of debt, but my father bailed him out before the bank took everything he owned.
「兄は多くの負債があったが、銀行に全てを取られる前に父が援助した」
debt で「借金・負債」
to bail someone out で「人を救済する・資金援助をする」
ーMy friend got in trouble with the law and was arrested, so I bailed him out.
「友人が警察沙汰を起こし逮捕されたので、彼を
to get in trouble with the law で「警察沙汰を起こす・法に触れる問題を起こす」
to be arrested で「逮捕される」
to bail someone out で「保釈金を払って人を刑務所から出す」
ご参考まで！
カナダ 
