go into a (flat) spin
转（平）圈
以上为机器翻译结果，长、整句建议使用 人工翻译 。
When Mary broke off the engagement, John seemed to go into a flat spin.
玛丽毁除婚约，约翰似乎神经失常。
《新英汉大辞典》
When Mary broke off the engagement, John seemed to go into a flat spin. He was hardly ever sober for three months.
当玛丽毁掉婚约时，约翰好像完全失去了自我，3个月时间里他几乎没有清醒的时候。
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