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『如何建立夥伴間的向心力?』278Please respect copyright.PENANAnb4ndaP5ly
278Please respect copyright.PENANAvKYoJgqKxJ
有共同敵人。278Please respect copyright.PENANA71FJlUETWf
278Please respect copyright.PENANAKYjXZZMJnz
只要出現共同敵人(比如腦殘主管、白癡同學),278Please respect copyright.PENANAi0YgraV9Z6
通常都很有向心力。