At the moment, 85 of the OIST's researchers are gaijin.

OIST的85名研究员来自国外。

I used to live in what's called a gaijin house which is just a shared apartment.

我曾经在称为合房的地方，那里是合租公寓。

We found a gaijin in the forest.

我们在树林里发现了一个外国。