or deadhead
或免费乘客
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Deadhead means a vehicle, such as an aircraft and truck that transports no passengers or freight during a single trip.
空回头车指如飞机和卡车的交通工具在单程中没有运输乘客或货物。
youdao
"Deadhead," or take off,dead blooms.
VOA: special.2009.10.06
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