The Swadesh list is intended to ascertain an individual's fluency before he is taken on.

斯瓦迪士核心词表旨在于录用志愿者前先确定他的语言流利程度。

Each volunteer speaker of a language of interest is first tested with what is known as a Swadesh list.

首先，要用称为斯瓦迪士核心词表的列表为一种目标研究语言的每位志愿者进行测试。