"Friendship rupture" 用英语可以表达为 "friendship breakdown" 或 "rupture of friendship" 。这个词组主要指友谊关系破裂或结束。
来源：这个词组主要是由 "friendship" (友谊) 和 "rupture" (破裂) 两个词组合而成。
英文例句及其中文翻译：
The friendship breakdown between the two countries was due to a disagreement over trade popcies. (两国之间的友谊破裂是因为贸易政策上的分歧。)
The rupture of friendship between the two friends was caused by a misunderstanding. (这对朋友之间友谊的破裂是由误会引起的。)
The friendship had been under strain for months before finally rupturing. (这段友谊在经过几个月的紧张后终于破裂了。)