After a four-day trip, he gave the water to the old man and he took a deep drink, smiled warmly and thanked his student for the sweet water.

经过四天的旅行，他把水给了老人，老人深深地喝了一口，露出了温暖的笑容，感谢他的学生提供的甜水。

youdao

Bill: I'd like to have a four-day trip to the Rockies this fall.

比尔：今年秋天我想去洛基山旅行四天。

youdao

So the week after Easter we set off by bike on a four-day trip to Wimpfen, Amorbach, and Miltenberg.

因此复活节后那个星期我们骑自行车出发去温普芬，阿莫·巴赫和米尔藤贝格进行为期四天的旅行。

youdao

Mrs Clinton was in the city as part of a four-day trip to Europe.

BBC: Northern Ireland

Suspicions were raised when Delisle returned in 2011 from a four-day trip to Brazil - where he had met a Russian handler - with several thousands dollars in cash.

BBC: Canadian Jeffrey Delisle guilty of spying for Russia

Suspicions were raised when Delisle returned in 2011 from a four-day trip to Brazil - where he had met a Russian handler - with several thousand dollars in cash.

BBC: Prison for Canadian navy officer turned Russian spy