1. travel along : 步行, 快步行走；
及物动词
不及物动词
教育
保险
1. self-propelled movement
Synonym: locomotion
2. the act of going from one place to another
e.g. he enjoyed selling but he hated the travel
Synonym: travelingtravelling
3. a movement through space that changes the location of something
Synonym: change of location