n.契约,合同,正式凭单,文据
vt.<史>以契约束缚(学徒)
He is indenture to a builder.
他与一建筑工人订了师徒合同.
To bind into the service of another by indenture.
以契约约束按契约的规定为另一方服务.
She had to sign an indenture to sell herself, because she owed money to the landlord .
由于欠地主家的钱,她不得已签了卖身契。