ist为后缀的单词构成名词

He has always been a political activist.

他一直是一名政治积极分子。

He's an archaeologist and has been on a dig in Crete for the past year.

他是位考古学家，过去的.一年都在参与克里特岛上的一项考古发掘工作。

One of the girls had a father who is an archaeologist.

有一个学生的父亲就是一位考古学家。

I might look as good to you as that archaeologist.

你会觉得我和那考古学家一样英俊。

It seems an archaeologist had come to this remote place.

看来某个考古学家曾经到过这个偏远之地。