短语词组短语fail l to 未能;不能Words fail me to 失败的话;无法用语言表达我;词失败Fail -to-report rate 漏报率fail early to succeed sooner 以便快一点成功fail -to-safety 故障安全fail to do sth 做某事失败;未能做某事;未能做;没做成某事 返回 fail to