I spend so much time travelling that I've got packing down to a fine art.

我常常旅行，这就把打点行李学到家了。

《牛津词典》

Plus, eating fresh food means it probably spent less time travelling, which saves enormous amounts of oil and carbon dioxide emissions.

此外，吃新鲜食品意味着可能减少运输的时间，那是对石油和二氧化碳排放的减少的贡献。

youdao

During the next few years I spent a lot of time travelling between Boston (where reddit was based) and Maryland (where my parents lived).

之后几年的很长一段时间内我都是在往返于波士顿(Reddit总部)和马里兰(我父母住所)。

youdao

I was the Deputy Chief of Staff at that time, but because the president was travelling in Anticard.

当时我是办公厅副主任,但是当时总统,在外访问。

普林斯顿公开课 - 国际座谈会课程节选

Smith has taken over the lead role from David Tennant, who played the time travelling hero for four years.

BBC: New Doctor Who Matt Smith hopes series will 'thrill'

Miners have to spend a long time travelling to the rock face.

ECONOMIST: South Africa

By some estimates, American navy ships spend 80% of their time travelling at half speed, which requires barely one-eighth of the power needed to propel a ship at top speed.

ECONOMIST: Electric ships