I tried it out for Chinese. Why does it only look up single characters instead of words, which are often composed of multiple characters? Also, some of the pr

I tried it out for Chinese. Why does it only look up single characters instead of words, which are often composed of multiple characters? Also, some of the pronunciations are wrong. For example: 乾净 gan1jing4, 乾 showed up as qian2, which is wrong.