We had left Aswan for Luxor three days earlier, just 40 of us aboard a boat that usually carried 250.

三天前我们离开阿斯旺前往卢克索，在这条能装载250名乘客的船上只有40名游客。

youdao

Katz hopscotched along a strip of hotels near Mitchell International Airport, staying at one for three or four days, then moving to the next, usually less than a few hundred yards away.

Katz在Mitchell国际机场附近不停地更换旅馆，在每一家停留三到四天，然后搬到几百米外的另外一家去住。

youdao

Whether the incubation period — the time it takes to develop symptoms after exposure to a mutated virus —differs from that for known influenza viruses, usually one to three days.

是否有潜伏期-在接触变异病毒之后有多长时间才产生症状-与已知流感病毒不同，通常是1-3天。

youdao

In those cases, the client usually keeps the work for two or three days before making a decision.

FORBES: Feature

Reports had it that they can live on land for up to three days, but the best they usually seem to manage is several hours under wet burlap in open markets where they're sold for their flesh.

CNN: Fish tale

The basic literacy programme takes place over one and a half years, and is held for three hours per day for five days a week at the NFE centres, usually housed in local schools.

UNESCO: Non-Formal and Continuing Education Programme