[DougLewis]

Originally Posted by YuriTokoro

Sorry, I don’t understand “They flow through the system quickly” and “a core group”

They come and go quickly through the school system.
A core group is the stable center of a group - the few who are found within an organized group, the ones that keep it together)

"Core", comes from the inner part of a fruit such as an apple - it contains the seeds. Example "Apple core."

What’s “single voice”?
Many people saying the same thing.

Sorry! But what’s a main body?
A body can be used to describe many people in a group or a single persons "body." It can be used to describe any large gathering.

A body is a collection of many parts which make a whole.

Examples

"A large body of water, can be a lake or ocean."
"A large body of work, can be a very big study with documentation"

You mean they are not interested in uniting, don’t you? (Yes)

I don’t understand what you mean enough, but I think you mean your post about “luck”, and I haven’t answered it.
I’m so sorry. I read it, but I didn’t know what I should have written because many people had answered it and I didn’t want to answer them with the same sentences. I don’t have variations of expressions.
I think that’s why snbzk suggested me to edit my first post.
I’m sorry.

Hi YuriTokoro

There is no need to be sorry. My signature tries to explain why.

There are many times when the translations of words are understood but because of idioms and "expressions" used in all languages, recognition of context and comprehension can be easily lost if explanation is not provided.

I try to assist with practical use of English language, meaning the common form and uses rather than the technical aspects.

I try to provide common English expressions - these usually work well in causing people to ask for explanation. Explanation is a good chance to increase understanding.

Questions are the name of the game. It is bewildering.. words can often be used as questions as an example - "Really?"