This predicate returns true iff u has extended a friendship invitation to v.
该谓词返回true当且仅当u向v发出了朋友邀请.
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True friendship comes when the silence between two people is comfortable.--David Tyson Gentry
真正的友情是,即使两人不说话,也觉得很舒服。
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True friendship foresees the needs of other rather than proclaim it's own.
真正的友人总是考虑别人的需要而不是提出自己的要求.
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True friendship foresees the needs of other rather proclaim its own.
真正的伙伴总是考虑别人的需要而不是提出自己的要求.
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盛名招来朋侪, 成功自有朋友, 而逆境乃真正友谊之试金石.
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