recourse
/rɪˈkɔ:s; rɪ`kɔrs/ n[U]
1 possible source of help, eg in an emergency 求助的对象（如情况紧急时）
They managed without recourse to (ie without seeking) outside help. 他们不寻求外援也能应付过去.
Your only recourse is legal action. 你只有靠诉讼了.
2 (idm 习语) have recourse to sb/sth (fml 文) turn to sb/sth for help; get help from sb/sth 求助於某人[某事物]; 获得来自某人[某事物]的援助
I hope the doctors won't have recourse to surgery. 我希望医生可别非动手术不可.