buy [sell] a 10% stake in the business
その企業の株を10%買う[売る]
buy a bicycle with one's savings
貯金で自転車を買う
buy a car outright
車を即金で買う
buy a car secondhand
車を中古で買う
buy a copy from the online bookstore for $99
ネット書店で99ドルで1冊買う
buy a Ford
フォード車を1台買う
buy a new game
新しいゲーム(盤[ソフト])を買う
buy a new house for the family [the family a new house]
家族のために新しい家を買う
buy a pig in a poke
((略式))よく調べないで買う;安請け合いをする
buy a ticket
切符を買う