What's the difference between bar and loaf,

Piece means a piece, such as paper or bread
Cheese means a piece, such as cheese
Loaf means a piece or loaf, such as sugar or bread or tofu
Bar means a bar, such as soap

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1. What's the difference between piece; loaf; bar? The more specific the better, always confused. I know the meaning, but what is the specific distinction The one below, I know what it means. I can find these everywhere. Will I come here to ask? The main reason is that they can't be distinguished. In English, they are different! What I want is a clearer distinction. I already know what you said. I understand the meaning, but both piece and bar can be used to express block
2. What's the difference between a piece of and a bar of? A bar of soap is a piece of cheese. Why use piece and bar separately?
3. A piece of cheese is a piece of cheese, so is a loaf of cheese also a piece of cheese? Is there any difference between piece and loaf? So why is a piece of bread a loaf of bread? And bar
4. The usage of piece or a piece of When an adjective modifies piece or a piece of, where is the position of the adjective? For example, translation: a piece of good news or a piece of good news I looked it up in the Oxford Dictionary, for example, a large piece of land. An interesting piece of research. But I'm still not sure where the adjectives are. Hope that high-level experts can have a detailed answer with examples.
5. Do loaf and bread mean bread? Why can they be used together? Some use a piece of bread, some use a loaf of bread
6. Which is right, a carton of milk or a box of milk? In a multiple-choice question, there is such a question: I always have ____ ,an egg,two pieces of bread for my breakfast. A.a milk B.a carton of milk C.two packet of milk D.a box of milk B. Some are d. which is right? What is the reason? (only one answer)
7. Is it a carton of milk or a bottle of milk? Why am I writing a bottle of milk wrong? milk
8. I'd like a carton of milk. Ask to change into general questions, to quickly
9. There is a box of milk on the table?
10. What is a loaf of bread like? What about a slice of bread?
11. A cup of coffee
12. The price of a cup of coffee is lighter than ___ How to use the answer that
13. _______ a glass of coffee. A I have B I'd rather have C I prefer to
14. would you like a cup of coffee?______ .I would like a glass of water. A、No,thank you B、No,I would not C、Yes,I would D、Yes,please
15. A:Would you like something to drink?( )a cup of tea?B:No,( ).I'd like a glass of milk. A:Would you like something to drink?( )a cup of tea? B:No,( ).I'd like a glass of milk. A:Would you like something to( B:Some bread,please. A:All right.Here you are. B:Thank you. A:( )
16. I（）a glass of milk What to fill in? 1.would like 2.could like 3.can like 4.am like
17. Please have a cup of milk
18. Please translate the following into English phrases Protect sb. From Encourage someone to do it. Realize that .
19. English translation Introduce the singer to others Always eating At the end of book club A piece of land in the ocean Science and technology Enjoy your success Grow up At the beginning of French class
20. English translation 1 "input" 2 "ever" 3 "really" 4 "forget" 5 "diet" 6 "reject proposal" 7 "out of order, out of order" 8 "dispel, decompose" can answer a few, count a few, the answer should have serial number,