夯实器，流浪者，流动工匠
1. 不定期船：(定期)邮船 mail liner | 不定期船 tramper | 客船 passenger ship
2. 夯实器：trammel 椭圆量规 | tramper 夯实器 | trampolin 蹦床
3. 不定线货船：tramper不定期货船 | tramper不定线货船 | tramping不定航线营运
4. 不定期货船：tramper不定期船 | tramper不定期货船 | tramper不定线货船
noun
1. tramper
1. a foot traveler someone who goes on an extended walk (for pleasure)
Synonym: hiker tramp
2. someone who walks with a heavy noisy gait or who stamps on the ground
Synonym: stamper stomper trampler