She did not contest the annulment.听到宣告无效的决定, 她没有申辩。

a court petition formally requesting a vote recount and an annulment of the election result正式要求重新计票并宣布选举结果无效的法庭申请书

Another possible reason for annulment is if the marriage was never consummated.宣布婚姻无效的另一个可能理由是双方并未圆房。