Generally speaking, spoken English is rarely used in dictionaries, and it is often marked with fomal or its abbreviation fml, or it is often used in formal contexts and literary works.
On the one hand, advanced vocabulary is always accurate.
For example, to describe a strong person, you would say strong, but robust is more advanced
For example, you want to say important, but what is important is more advanced.
For example, if you want to refute someone, you can say retreat, but the rebuttal is more formal.
For example, if you want to say "wind", you only know that wind is not enough. You should also know the gust and breeze according to the size of the wind.
For example, to walk, just saying "walk" is too broad. You should know that "tiptoe" tiptoes and "stride" strides.
For example, if you want to tell a folk story, it is not enough to tell a story, but to tell a folk legend.
In addition, high accuracy in the use of words can also be regarded as "very advanced use"
For example, walk can be used as follows: walk this distance
Cover can be used as follows: there is all the content to be covered (cover can be understood as: reporting, involving)
English has a huge vocabulary because it creates words to represent almost all the "concrete" things that exist in this world (but few abstract things that China people like to correct, such as "fate"). . )
Therefore, you must pay more attention to expanding your vocabulary. Maybe you can express your meaning in simple words, but insiders can guess at a glance that you are a layman. In addition, because of the large English vocabulary, the meaning of each word is highly accurate. Sometimes you have to use a few words to explain the problem, and one word can solve it. . -So accumulate vocabulary and keep improving ~
Ps: It is a good thing to pay attention to the accumulation of advanced vocabulary, but it is not easy for foreign language learners to deeply understand its meaning because of its low frequency, which leads to improper use (such as "easy to do something", which is widely used for understanding. But there is also a tendency to do something. After learning this phrase, you can easily use it everywhere when you are excited, but you don't know that this phrase only appears in a specific context. In other words, it is easy to make mistakes or do bad things. Therefore, when accumulating advanced vocabulary, we must pay attention to the context in which the word appears, and it is best to remember those example sentences or the context in which it appears.