(1)主债务(→principal debt)

(2)主要义务
即主要合同义务，指基于当事人的主要缔约目的而产生的义务。例如，在买卖合同中卖方的主要义务是向买方转移标的物的所有权。

• immortality of corporation
• immovable
• immovable property
• immoveable
• immunity
• immunity bath
• immunity clause
• immunity from arrest
• immunity from liability
• immunity from process
• immunity from prosecution
• immunity from suit
• immunity of witness
• immunity provisions
• immurement
• IMO
• impacted area
• impact rule
• impaired capital
• impairing the obligation of contracts
• impairment of capital
• impairment of earning ability
• impairment of justice
• impairment of memory
• impairment of mind