work contract 其實(shí)就是 contract for service :Definition
Contract for a job undertaken by a self employed person.While he or she may hire others to carry out (or help) in the work,he or she is solely responsible for the satisfactory completion of the job.
service contract 是指 contract of service:Definition
Oral or written,express or implied,agreement specifying terms and conditions under which a person consents to perform certain duties as directed and controlled by an employer in return for an agreed upon wage or salary.
建議您通過谷歌使用 difference between contract of service and contract for service 搜索,就可以得到許多資料,夠您參考的了.
【英語牛人團(tuán)】非常感謝大神相救呀~~~~可以用LAW的角度分析下么我手頭也沒有資料。但 law 是各國都略有不同，還是要根據(jù)你的需求去搜索。