1. Even if you travel in ideal weather, sea journeys take a long time.
    即使风平浪静，坐船旅行也要占用很长时间。

2. Why don´t you entrust that to a travel agency?
    为什么你不交托给旅行社呢?

3. We couldn´t induce the old lady to travel by air.
    我们无法劝说那位老太太坐飞机去.

4. It requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth´s surface into orbit!
    因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。

5. Will you travel by sea or by air?
    你们乘船去，还是乘飞机去？

6. We may travel by sea.
    我们可能乘船去。

7. When I travel to Third World countries I see many people like my father and daughter.
    我到第三世界国家去旅行时，看到了许多像我父亲和女儿那样的人。

8. They will travel in the northern cities.
    他们将在北方各城市旅行。

9. The foreign visitors are going to travel in some southern provinces of China.
    外宾将在中国南方几省旅行。

10. To escape from the Earth in a rocket, one must travel at seven miles per second.
    要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，