Another way of writing it is: (k * k *k) + ((3 * K) * (3 * K))

Shop I would say that a shop is somewhere you go to have a service preformed, or only provides a single or narrowly focused good. Usually contains a workshop of some kind where the goods are made on-site for the customer. Body Shop refers to an auto repair facility (autobody shop) Wood Shop refers to a place where you can go to get custom woodworking done Coffee Shop a place you can go to get hand-made drinks Butcher's Shop a place to get custom cuts of meat Store I would say that a store is the more common American term for a place you go to buy something. They usually have many different sections and offer a wider variety of goods than a shop. The goods you purchase are usually made off-site and only stored on location. Department Store buy furnishings and clothes for each room of the house Grocery Store buy food and many other consumables Online Store buy anything! :D Source: http://english.stackexchange.com/questions/9797/what-are-the-differences-between-shop-shoppe-and-store

There is no shortcuts to understanding a language. The more foreign the language is to your native language the harder it will be to learn. The only way you can understand and speak the language naturally is to have lots of experience in reading, listening and speaking. Thankfully we live in the internet age and there is almost unlimited resources available to learn your target language. As for listening and understanding you should be exposing yourself to Korean media, whether it is movies, TV shows, panel discussions. By doing this you should naturally improve your conversation understanding ability.

For 2 people speaking English with the same accent there is a obvious difference between the pronunciation. The same is true for any English speaking country no matter what accent they have.

"Drawing ornaments is very precise work" is correct but saying "Drawing ornaments is very accurate work" doesn't make proper sense. You could say "When I draw ornaments I make sure it is accurate". Here is the 2 best examples I found: "You can think of accuracy and precision in terms of a basketball player. If the player always makes a basket, even though he strikes different portions of the rim, he has a high degree of accuracy. If he doesn't make many baskets, but always strikes the same portion of the rim, he has a high degree of precision. A player who throws free throws that always make the basket the exact same way has a high degree of both accuracy and precision." "Take experimental measurements for another example of precision and accuracy. If you take the measurements of the mass of a 50.0 gram standard sample and get values of 47.5, 47.6, 47.5, and 47.7 grams, your scale is precise, but not very accurate." Source: http://chemistry.about.com/od/unitsconversions/fl/What-Is-the-Difference-Between-Accuracy-and-Precision.htm

Hi, please read the section "13. What is a personal pronoun?" https://books.google.com.au/books?id=0H0LpATiLxwC&printsec=frontcover#v=onepage&q&f=false

They are similar. The way I see it is: "To vanish" - means something that happened quickly and unexpectedly. "To disappear" - Something that is gone or missing however not like vanished where it was unexpected.