Our tourist experienced a total range of 70 degrees Celsius during his trip, from minus 30 degrees in Antarctica to 40 degrees in Egypt.

我们的游客在旅行中总共经历了跨越70摄氏度的范围，从南极洲的零下30度到埃及的40度。

Construction could get underway as soon as 2022 and estimates for the project's total duration range from ten to 30 years.

工程最快将于 2022 年开工，预计该项目的总工期从 10 年到 30 年不等。