travel的過去式：traveled。
ravel
英 [?tr?vl] 美 [?tr?v?l]
n.
旅行;進行;移動;漫遊
vi.
旅行;傳送;前進，行進;[籃球]走步
vt.
經過，通過;遊歷
例句：
If you travel, you go from one place to another, often to a place that is far away. ?
妳最好明天趕赴赫爾辛基。
Getting to and from school involves two hours' travelling a day.
往返學校每天要兩個小時的行程。
When light or sound from one place reaches another, you say that it travels to the other place.
當聲音在水中傳播時，可能會發生奇怪的現象。