travelledadj.有旅行经验的;旅客多的动词travel的过去式和过去分词.=traveled.
travelv.旅行;去某地;传播;快速移动;[体]走步n.旅行;移动
traveling industrial association旅游行业协会
travel along a certain course.沿着特定的路线行进。
Travel broadens one's horizon.居室装潢
Travelling at a tremendous speed高速行进
travel time ultrasonic flowmeter时差法超声波流量
Travelling by air is horrible.坐飞机旅行是可怕的。
traveling ionosphere disturbance移动的电离层骚扰
traveling-wave photomultiplier行波光电倍增管