Butstillthereisadang的知识精选

36 Butstillthereisadangerthatgrowseveryyear.Airlinersge...
问题详情:36 Butstillthereisadangerthatgrowseveryyear.Airlinersgetlarger.Someairplanescanholdover300passengers.Andtheairitselfbecomesmoreandmorecrowded.Ifonegiantairlinercrashedintoanotherinmid-air600lives...
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