apertium-eo-en software package provides Apertium linguistic data to translate between Esperanto and English, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install apertium-eo-en
apertium-eo-en is installed in your system.
Make ensure the apertium-eo-en package were installed using the commands given below,
$ sudo dpkg-query -l | grep apertium-eo-en *
You will get with apertium-eo-en package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Science |
| Package | apertium-eo-en |
| Version | 1.0.0~r63833-1 |
| Description | Apertium linguistic data to translate between Esperanto and English |
| Sub Section | Science |