八门家
Bamen Family
以上为机器翻译结果，长、整句建议使用 人工翻译 。
人们并不缺少尝试：发明家研制喷气背包已逾60年，成果五花八门。
This isn't for want of trying: inventors have been working on creating real working jetpacks for more than 60 years, with mixed results.
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