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https://www.usatoday.com/story/news/nation/2019/09/29/boeing-faces-new-737-issue-cracks-wing-supports-ng-version/3812795002/
您即将离开知乎,请注意您的帐号和财产安全。
https://www.usatoday.com/story/news/nation/2019/09/29/boeing-faces-new-737-issue-cracks-wing-supports-ng-version/3812795002/