tramper
不定期船
Tramp·er n. One who tramps; a stroller; a vagrant or vagabond; a tramp.
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tramper
n 1: someone who walks with a heavy noisy gait or who stamps on
the ground [syn: stamper, stomper, trampler]
2: a foot traveler; someone who goes on an extended walk (for
pleasure) [syn: hiker, tramp]