About 30-40 years ago when I was assigned overseas, I sure could have used this program. Using Translator, you can just type or speak the phrase you want translated and viola! It produces the phrase in the language you have selected. Then you can press the speak button and the phone will speak the phrase for you.
It also has a camera function where you can hover over a document and as you move the phone, it will actively translate as you scan back and forth over the document. Again, if you are in a foreign country and can't tell that pollo means chicken, this is the app for you.
It has limited languages for now, but what it has it does really well.