bù zhuó lù fēi xíng / suī rán / shěng shí / dàn / duì / jī zǔ / rén yuán / de / yāo qiú / hěn / gāo不着陆飞行虽然省时,但对机组人员的要求很高。Although a nonstop flight saves time, it places high demands on the crew.