Assignment 3: The difference between "big" and "large"

I used online concordancers and dictionary to find the answer. The results are as follows:
(1)When "BIG" is a asjective, it can define the degree、volume of object.
ex:How big the birthday cake is!
(2)BIG also can describe the state of people.
ex:You're big boys now.
(3)When "LARGE" is a asjective, it can explain the total of individuality.
ex:The concert drew a large audience
(4)Large was used to writing composition, because it a formal word than "big".
ex:He vomited large amounts of blood-stained sputum.
In the end, BIG and LARGE are different, so I need using them carefully

Assignment2-Dictionaries

1. concentrate verb (GIVE ATTENTION)
   /ˈkɒnt .sən.treɪt//ˈkɑːnt -/ v
   [I or T] to direct your attention or your efforts towards a particular activity, subject or problem
2. carve verb
   /kɑːv//kɑːrv/ v [I or T]
   • to make something by cutting into especially wood or stone, or to cut into the surface of stone, wood, etc.
   This totem pole is carved from/out of a single tree trunk.
   He carved her name on a tree.
   Some of the tunnels in the cliff are natural, some were carved out (= cut into the rock) by soldiers for defensive purposes.
   • to cut thin pieces from a large piece of cooked meat
   Would you like me to carve (the chicken)?
3. dismiss verb (FORGET)
   /dɪˈsmɪs/ v
   [T] to decide that something or someone is not important and not worth considering
   I think he'd dismissed me as an idiot within five minutes of meeting me.
   Let's not just dismiss the idea before we've even thought about it.
   Just dismiss those thoughts from your mind - they're crazy and not worth thinking about.
4. loose adjective (NOT FIXED)
   /luːs/ adj
   • not firmly fixed in place
   There were some loose wires hanging out of the wall.
   The nails in the bridge had worked themselves loose.
   The prisoners were so thin that their skin hung loose.
   • describes hair that is not tied back
   Her hair was hanging loose about her shoulders.
   • describes things which are not fixed or held together or to anything else
   A few loose sheets of paper were lying around.
5. coward noun
   /ˈkaʊ.əd//ˈkaʊ.ɚd/ n [C] disapproving a person who is too eager to avoid danger, difficulty or pain
   They branded her a coward for informing on her colleagues during the interrogation.

This is my introduce,I welcome your visiting.

Hello, classmates and my dear professor. I'm very glad to write my diary for my blog.I'm Eddie Wu, 22 years old. I were born in 12, 1987, Taipei. I am a junior in NTUST and my major is design. I'm a hard working student especially in my major homework because I want to be a professional designer. Playing basketball in my spare time is my favorite hobby. By the way, Paul Pierce is my favorite NBA player.

In addition to playing basketball,I also like read comic book, watching a movie and using internet to buy what I need.In fact, I am nerdy except on the basketball court. English is my worse object. I know my English is not good enough especially my compositions, so I will keep studying and writing it.Ok, that is all, thank you for your attention.