I need translation of few sentences text from English to Chinese (simple)

Make your city the happiest in the world - share you mood with Happy barometer! Download this app and express you mood in the city you are. Do it by taking your face photo - app will recognise how happy you are, or drag animated smile! Share your mood and feelings with others. Also you can measure your friends mood and share it on social networks! Vote every hour and see your city among the happiest cities in the world! Join us and invite your friends to share good emotions. It is said that every day spent without a smile is a lost day!