[singlun]

Google translate is not perfect, even for Mandarin to English translation. But it is good enough to hold a simple conversation with a Viet bu. I used it to talk to a Cafe girl last week and I input simple English for the translation. The girl has no problem understanding it. At the end of the conversation, she gave me her numbers.
At the moment Google translation is the best you can have.of course, it can't beat human translation.