相互的，彼此的；***同的，***有的
Negotiations between unions and management are made more difficult by mutual distrust.
工會和資方之間的談判由於互不信任而愈加困難。
Other organizations have joined the confederation for mutual benefit.
其他組織為了***同的利益也加入了這個聯盟。
The country agreed to confederate with the neighboring country for mutual safety.
這個國家同意為了***同的安全而與鄰國結盟