For me, the two fruits everyone should know in Chinese are:
- Durian – 榴莲 (liúlián) - to avoid it!
- Papaya – 木瓜 mùguā - because everyone needs to try Papaya milk (木瓜牛奶), it’s one of my favourites to get at the night market

For me, the two fruits everyone should know in Chinese are: