求助--
澳大利亚拒签，是否值得马上再补材料申请？
我和老婆，以及朋友和他太太，今年3月就买了亚航12月往返
墨尔本的机票，我和老婆的
签证出来了，昨天朋友和他妻子两个都被拒签，我们分析他们2个被拒签的原因是
1）工作年限，他只写了5年，实际上在事业单位上班20年了，前15年在另外一单位
2）资产：只提供了一套房产证
在这种情况下，请教各位如果补充以下材料，是否值得马上再重新申请？
1)补上第2套房产证（下周可以拿到手）
2）补充说明工作年限，请工作过的2个单位分别出证明
请问可行否？谢谢
以下是拒签的英文：
Reason for Visa Refusal
This section details the requirement you did not meet.
You did not satisfy Subclause 676.221(2)(a),which reads that :
The applicant satisfies the Minister that the applicant’s expressed intention to only visit Australia is genuine.
While you are employed, I do not consider your employment circumstances to be a strong incentive for you to return to China.
You are of working age. I consider that your employment circumstances do not constitute strong incentive to ensure that you will comply with visa conditions in Australia.
While you have provided personal funds evidence. I do not consider it is sufficient to demonstrate that there is incentive for you to return to China.
As a result of the above, I can not be satisfied that a genuine visit is intended and therefore must refuse your application.
Reason for Visa Refusal
This section details the requirement you did not meet.
You did not satisfy Subclause 676.221(2)(a),which reads that :
The applicant satisfies the Minister that the applicant’s expressed intention to only visit Australia is genuine.
While you are employed, I do not consider your employment circumstances to be a strong incentive for you to return to China.
You are of working age. I consider that your employment circumstances do not constitute strong incentive to ensure that you will comply with visa conditions in Australia.
While you have provided personal funds evidence. I do not consider it is sufficient to demonstrate that there is incentive for you to return to China.
As a result of the above, I can not be satisfied that a genuine visit is intended and therefore must refuse your application.
请各位帮忙出出主意，我是很希望2家人，4人合租一辆房车去澳洲自驾旅游，谢谢