短語詞組短語Had It Not Been 若非;虛擬語氣had it not been for 若非;要不是had not been proved 考點(diǎn)過去完成時的被動語態(tài)Had Not Been Disclosed 還沒有被had not yet been 尚未得到had not been reported 未見報道Had Not Been Determined 不過尚未確定had not yet been reported 未見文獻(xiàn)報道 返回 had not been