The women proposed the job-share idea to Zoomerang's top management after each had worked many years in the software field and had obtained master's of business administration degrees. ’s 是不是應該放在business administration后面，這里怎么放在前面？[幾個詞作為一個單位時，’s 應加在最后一個詞的末尾。如：the Queen of England's throne-----薄冰語法]

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master's 表示碩士（的證書），而of后面則是解釋這個證書是什么領域的。