Deadheadn.
英 'dedhed | 美 'dɛd,hɛd
中文n. 免费乘客；免费入场者；空车返回
词根词源
Deadhead (n.)by 1974 in sense of "devotee of the rock music band the Grateful Dead;" earlier (with lower-case) "one who rides for free on the railroads" (1866), and "non-paying spectator" (1841).
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