travel traveler traveling 区别

travel v.旅游、 旅行
ex.can we travel together?
traveler n.旅行者
ex.Time Traveler's wife 时间旅行者的妻子
traveling 也可以写做 travelling 双写l +ing.travel的-ing 形式.
可以用在现在进行时或过去进行时 现在完成进行时或过去完成进行时.
ex.I'm travelling.
She was travelling when she called me.
They have been travelling.
He had been travelling for a long time after he quitted his job.
希望能对你有所帮助 :)