"Xu" is a will verb, also called an auxiliary verb, which expresses people's wishes. For example, you must pay attention to it and work hard. "Xu" is used as a noun when it refers to the things that must be known, such as exam instructions and sightseeing instructions.
"Need" is often used as a verb and sometimes as a noun, indicating requirements and needs. For example, we need knowledge and food.
The difference between "must" and "necessary"
The two words "must" and "must" have the same pronunciation and also contain some important components in meaning. Therefore, students are easy to get confused in their studies and make mistakes in their writing. So, let's meet these two words!
Essential, focusing on the meaning of having to have, indispensable, usually followed by nouns, such as: supplies needed for study, indispensable items in life; Tools needed for labor; Medical equipment, medicines, etc. For example, coal and iron are essential raw materials for industrial development.
"Must" focuses on the necessity of expressing reason and reason. For example, you must study hard, work hard and be polite to others, and so on. It must usually be followed by a verb or adjective. Sometimes, you must also express an imperative tone, such as being sure to come tomorrow. Here, students should pay attention to the antonym of "must" as "no, no, no".
Must: adverb, the same as "must" and "must". In all the materials, the adjective that is occasionally useful should be "must", which should be wrong, because some materials use "must" confusedly. )
Necessary: Verbs, adjectives and adverbs appear at the same time, which may be: 1. As a compound word with partial meaning, it tends to be "necessary" and "need" is the foil; 2. "Necessity" has certain strength. Even the servants, concubines, goods, chickens and dogs of "necessities" were robbed, and they were robbers (that is, thieves in ancient Chinese). "Inevitably" initiative.
The difference between "both need" and "both need" lies in "need".
"Must" means necessary, and "need" means need.
"All must" means that all people or things must show their certificates without exception.
The meaning of "all need" is similar to "all need", and the degree is relatively light. Because "all needs" emphasizes what all people or things should do, it should be used in most cases.