这条大船的马达坏了，无法再航行了。
当补给小组把物资送达之后，他们必须再反向重复一遍这样的航行。
After they have dropped off our supplies they then have to repeat the process in reverse.
达尔文的大部分朋友关系靠通信维持，在他年轻时乘坐英国皇家海军舰艇“小猎犬”号进行了五年的航行后，几乎没有再离开过他在英国乡下的老家。
Most of Darwin's friendships were conducted through the mail, and after his five-year voyage on HMS Beagle as a young man, he rarely left his home in the English countryside.
航行中肝脾手术采用大网膜或纱布填塞创面止血能为伤员后送创造再手术机会。
Hemostasis by epiploon and pledget stuffing could create chances for re operations after the wounded were evacuated.
航行中肝脾手术采用大网膜或纱布填塞创面止血能为伤员后送创造再手术机会。
Hemostasis by epiploon and pledget stuffing could create chances for re operations after the wounded were evacuated.
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