escape hatch
noun [ C ] uk/ɪˈskeɪp ˌhætʃ/ us/ɪˈskeɪp ˌhætʃ/
（潜艇的）紧急出口
the part of a submarine through which people can leave when it is underwater
（摆脱困境等的）出路；（解决困难等的）办法
a way of getting out of a difficult or unwanted situation
The psychiatrist offered him an escape hatch from his feelings of guilt. 精神科医师找到了办法帮助他消除负罪感。