这种appeal, 胜诉的可能性有吗？
-Yes, depends on the reasons you used for the appeal. But most people may not want to appeal becuase it takes too long time and you don't know whether you can win it or not. So, most people just choose to file a new one.
具体原因是有人说根本就没有面试就被Pass了。
如果appeal failed, 还可以重新申请吗？-Yes. But your eemployer cannot file a new one for the same position until the appeal has the failure result.
