What does “get to the bottom of” mean?

to find out the real cause of sth, especially sth unpleasant

How is “get to the bottom of” used?

In Captain Marvel (2019), one line is: “We'll get to the bottom of this, Vers.”

The clip at the top of this page is from Captain Marvel (2019).

We'll get to the bottom of this, Vers.

8 作品で登場 · 1 本目