This is seen on things like dictionaries. When you have an English and Japanese (style) dictionary, for example. You'll see it the other way around too, but this particular one is English Japanese.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
to look in an English-Japanese dictionary
to look something up in an English-Japanese dictionary
to use an English-Japanese dictionary
I work as an English-Japanese translator.
A new English Japanese parallel translation book came out.
Uh-oh, Cameron's about to cry! Can you go find the English-Japanese dictionary and hand it to him?