A:
× 'Karrot (market)' is an application of online C2C flee market platform.
✓ 'Karrot (market)' is a (mobile) application variant of the C2C free market website/ online platform.
× The app's original Korean name 당근(carrot) is said short for 당신 근처(near you).
✓ The app's original Korean name, ‘당근’ (‘carrot’), is short for/ is an abbreviation of ‘당신 근처’ (near you’).
× Anyone can be a merchant and learn by experience skills of marketing or negatiation by this app.
✓ Anyone can sell and learn marketing or negotiation skills through experience on this app.
× Or you can just share for free the goods that you don't feel necessary anymore to a person who need them, instead having to pay for dispoasal expense to throw them away.
✓ Or you can just give away unused goods for free to people who need them, instead of having to pay a disposal expense to throw them away.
× This app was launched in 2015, and is expected to have about 18 million registered users now.
✓ This app was launched in 2015, and currently has approximately 18 million registered users.
× A neoligsm 당근하다(do karrot) meaning to upload a used product in Karrot, also appeared.
✓ A neologism ‘당근하다’ (‘do karrot’), meaning ‘to upload a used product to Karrot’, has also come into use.
× The app constrains the dealings in the regioin where the user resides.
✓ The app restricts deals to the region where the user resides/lives.
× So I thinik if we use it in an area where few people live such as countryside, we may meet an acquaintance as a transaction party.
✓ So I think if it is used in an area where few people live, such as the countryside, (I don’t understand this bit)
× It could be your neighbor next door.
✓ It could be your next-door neighbor.
-> ‘Is expected to’ refers to the future
E.g inflation is expected to rise by 2%
E.g sales are expected to increase over the holidays
-> ‘Neologism’ is a good word, but it’s very specific, so it won’t mean much to anyone who isn’t interested in linguistics.
-> US spelling: neighbor
UK spelling: neighbour
-> it’s more common to say ‘app’ in informal writing or conversation. ‘Application’ is quite long.