Their relationship has developed over a number of years.
多年来他们的友谊日益深厚。
A close relationship has developed between us.
我们之间发展了密切的关系。
Ian: Yes, if you have developed a close enough relationship with them.
伊恩：对啊，如果你和他们关系够好的话。
Ian: Yes, if you have developed a close enough relationship with them.
伊恩：对啊，如果你和他们关系够好的话。
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