Well, most slang words that have been used for a long period of time have been added to the dictionary, but then again, some other slang words have not. So, it really depends on the word.
But, for a straightforward answer i would say yes, just because some slang words are in the dictionary.
~Hope this helped
He should focus on the main idea of what he is speaking about and have good details. He must have necessary words that will make the people better understand what he is talking about.
Answer:
Explanation:
In order for us to make sure of it, i.e. to make sure of the validity of the information because we cannot rely on any source without making sure of its source and the validity of the information and the existing data