Some early users of chacha were disappointed to discover that they didn 't receive accurate answers .
chacha的部分早期用户就曾觉得很失望，因为他们得到的答案并不准确。
Unlike vlingo , chacha employs people to listen to and answer the queries .
不像vlingo，chacha雇佣人来收听并回答问题。
Scott jones , chief executive of chacha , said vlingo 's speech recognition is the best he has seen on a cell phone - though still not as good as human recognition .
