Stephan Munch and Santiago Salinas were intrigued by a major difference in the lifespans of two populations of pearl mussels.

斯蒂芬·蒙克和圣地亚哥·萨利纳斯，都被寿命中不同的两个珍珠贻贝所吸引。

They had done Santiago to León; now they said they wanted to experience the journey in reverse.

他们以前是从圣地亚哥到里昂，现在想要体验一下反向的旅程。

From that time on Santiago worked alone.

从那个时候起，桑提亚哥只是一个人干活。

In Santiago this buys just four bus fares a day.

在圣地亚哥这些钱只够每天买四张公交车票。

But raul had no such announcements to make in Santiago.

但是，劳尔在圣地亚哥的演说中并没有这样的声明。