It's a seven day trip
一个七天───One for seven days;旅行───travel
One theory for the deaths is that perhaps they sought treatment too late - falling sick an average of seven days before seeing a doctor.───对于死亡率有一种理论是,也许他们寻求治疗太晚——生病七天内应该看医生。
Just one or two ships a week leave for Cuba, as against six or seven in the pre-Castro days.───每周仅1 - 2艘船驶往古巴,而卡斯特罗上台之前,每周有6 - 7船。
At present, teams are required to hold less intense practices once per day for seven to 10 days in the heat before transitioning into more intense schedules with more than one practice per day.───目前,在转入更加紧张的日程之前,球队被要求在7到10天的训练中,每天进行的强度不应过高。