"Bis bald, ja?"
exactly what i meant. their programmers should learn from this website http://www.cantonese.sheik.co.uk/scripts/wordlist.htm where their scripts are able to detect compound phrases or idioms and handle them as one unit. this can help the learner better.
"You like your steak medium-rare, don't you?" - sounds more natural than , "...yes?" "You take your coffee black, right?" Of course in Japanese, you use "isn't it?" (so des ne), when expecting someone to agree with you. And in Spanish, they often use negative - "Don't you want some coffee?", instead of "Would you like some coffee?"