Translation of dual in German

So she and I went to the food store to buy some lunch. However, the store had almost no food and one could pay in local currency or in US dollars. One could really see the country's poor economy.
Our link book file suddenly disappeared overnight, and the technical team had no idea why. We fixed the problem now. Please go to vocabulix and than press the menu Link Book. Do you see it now?
I had to fly to Switzerland very urgently on Sunday, now I am back. Anyway, attached is a newsletter that will be sent to the users of Vocabulix. Should there be any changes, it would be nice.