英语翻译：
【经】 contractual liability
分词翻译：
合作的英语翻译：
co-operation; collaborate; corporation; team up; work together; logroll
【化】 cooperate; cooperation
【经】 consortium; cooperation; cooperativeness
规定的英语翻译：
rule; prescript; fix; formulate; ordain; provide; provision; regulate
【经】 duration of prescription; rule; state; stipulate; stipulation
义务的英语翻译：
devoir; duty; incumbency; mortgage; obligation; onus; volunteer
【经】 engagements; liability; obligation