Try this
1. Open your browser.
2. Type http://www.google.com in the Address field & press enter.
3. Click on "Language Tools" link.
4. In the Translate text field type "my mom is nice and cool."
5. Choose from "English to Spanish" & click Translate.
6. Copy the translated Spanish text. It should be "mi mama esta agradable y fresca." Paste it into Translate field again.
7. Choose from "Spanish to English" & click Translate.
What do you get?