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what's the difference between "from around the world" and "around the world"?

When teachers from all around the world meeting at the convention of the

These are a great way to correspond with students and teachers from all around
the world

...
has been built a fascinating story of coffee as it is grown all around the world.

Thanks.
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from indicates origin or motion.

teachers who come from all around the world (From where do they come?)

vs.
simple location
coffee that is grown all around the world (Where is it grown?)

CJ
Comments  
Thanks, CJ.