travelling是什么意思？

On February 14th, the self-driving car, travelling at 2 miles per hour, pulled out in front of a public bus going 15 miles per hour.

When the twin towers fell, Americans stopped travelling.

Besides the airport crowds and stress, travelling at a high altitude has real effects on the body.

Travelling is a great way to expand your world view, although it can be expensive.

When travelling overseas, do you buy water in plastic bottles or take your chances with tap water?

In the past few months, I’ve been travelling for weeks at a time with only one suitcase of clothes.

He was travelling on a scholarship from Delhi University.

In the past few months, I've been travelling for weeks at a time with only one suitcase of clothes.

The train cars were filled with groans because many of the passengers were travelling without cash.

We may instead find ourselves feeling guilty about the time we didn't spend watching our children grow all with our loved ones, or travelling or on the cultural or leisure suits that bring us happiness.