不知道有没有上传成功啊？
图片上传成功之后，清单细节页面将显示上传的图片和其他汽车信息。
Following a successful upload, the listing detail page should now show the uploaded images in addition to other vehicle information.
照片bucket是可选的，并且只有当处理程序调用发生在S3上传成功重定向到站点之后才会显示。
The image bucket is optional and should only show up if this handler is called after a S3 upload success redirects to our site.
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