had not been
短语词组
- Had It Not Been 若非;虚拟语气
- had it not been for 若非;要不是
- had not been proved 考点过去完成时的被动语态
- Had Not Been Disclosed 还没有被
- had not yet been 尚未得到
- had not been reported 未见报道
- Had Not Been Determined 不过尚未确定
- had not yet been reported 未见文献报道 返回 had not been