一个英语口语问题："Let's say"是什么意思？？

家里孩子做英语四级听力时遇到的一句话。
词典没查到。
谢谢大家
原文如下：
the purpose of our program is to provide language learning opportunities for this area's community,
whether a student's goal is to master basic
functional language skills,
let's say,
for his or her job,
or to study intensively to enter a US college or university.

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