close shave
noun [ C ] uk/ˌkləʊs ˈʃeɪv/ us/ˌkloʊs ˈʃeɪv/
侥幸脱险，幸免遇难；万幸
a situation in which you come very close to a dangerous situation
I had a close shave this morning - some idiot almost knocked me off my bike. 今天早上我可真险啊——有个白痴差点把我从自行车上撞下来。
Synonym: close call
Compare: squeaker