Description from extension meta
language word by word
Image from store
Description from store
twotrack gives you word by word translations for new languages, so you can get the gist of what's going on (and maybe pick up a few words along the way).
you need the google dictionary extension to load missing translations:
https://chrome.google.com/webstore/detail/google-dictionary-by-goog/mgijmajocgfcbeboacabfgobmjgjcoja