I dropped the key somewhere about here.
Tell me all about it.
The children are rushing about.
I dropped my key somewhere about here.
He was about to start.
It is about six o'clock now.
on the move
(of quantities) imprecise but fairly close to correct
同义词：approximately, close to, just about, some, roughly, more or less, around, or so
all around or on all sides
in the area or vicinity
to or among many different places or in no particular direction
in or to a reversed position or direction
in rotation or succession
(of actions or states) slightly short of or not quite accomplished
同义词：just about, almost, most, all but, nearly, near, nigh, virtually, well-nigh