单词：never before
音标：[ˈnevə biˈfɔ:] ；
以前从未曾有过
never before的用法和样例：
例句
- Never before had she written so many complaints.过去她从来没写过这么多抱怨的话。
- Never before have I been asked to accept a bribe.以前我从未被要求接受贿赂。
- Never before have the students been so inspired as at present.从来没有见过学生像现在这样精神振奋。
- Never before have they been so inspired and so daring as at present.从来没有看见他们像现在这样精神振奋，意气风发。