应以专业原则或法律的手段要求赔偿.Compensation for services should be pursued in a professional manner.合同也可以是明示的 、 事实默示或法律默示的.A contract may also be express, implied - in - fact, or implied - in - law.你的主科是实用型的,工程学, 医学或法律.You majored in ...