How to use apt-get packages in a conda virtual environment?

I’m using Jupyter notebook in a conda environment on Ubunto. I’ve been able to install all the packages I need with conda and pip. Now I need to use a package, python3-uno, that is only available with apt-get. My virtual environments cannot import this package. There are two python3 executables on my system, /usr/bin/python3 and the anaconda3/bin/python3. The /usr/bin/python3 can import this package, but I want the virtual environment to use this package.

How can I make this possible?