obligation of contract meaning in English

合同债务
履行合同义务
契约义务

Remove after the contract that rent , the right obligation of contract both sides is stopped namely , lessor should the hire of consign of go back tenant , but the hire that can deduct residence from which
解除租赁合同后，合同双方的权利义务即终止，出租人应退回承租人交付的租金，但可以从中扣除居住期间的租金。
The loss of reliance interests ca n ' t been caused by the action violating the previously conclued obligation of contract directly . on the condition that the party has reliance , then to bargain and sign the contract with the other party , the loss may happen
在信赖利益损失的发生上，当事人违反先合同义务行为并不必然导致信赖利益受损，只有在信赖人信赖了对方的缔约行为并进而缔约时才会受损。
1 . no state shall enter into any treaty , alliance , or confederation ; grant letters of marque and reprisal ; coin money ; emit bills of credit ; make any thing but gold and silver coin a tender in payment of debts ; pass any bill of attainder , ex post facto law , or law impairing the obligation of contracts , or grant any title of nobility . 2
第十款任何一州都不得：缔结任何条约，参加任何同盟或邦联颁发捕获敌船许可状铸造货币发行纸币使用金银币以外的任何物品作为偿还债务的货币通过任何公民权利剥夺法案追溯既往的法律或损害契约义务的法律或授予任何贵族爵位。