buy-back
/ˈbaɪbæk/noun
1- the buying back of goods by the original seller（原卖主对售出物的）回购。
1.1
- a form of borrowing in which shares or bonds are sold with an agreement to repurchase them at a later date回购协定（一种抛售股票或债券以在将来重新买回的借钱协定）：
with modifier a share buy-back.股票回购协定。