in, at or to this position or place
at this point of time
at this point in an activity, a series of events or a situation
"where do we go from here?"
"is everyone here?"
"I work here"
"radio waves received here on Earth"
"what do we have here?"
"here I must disagree"
"come here, please"
"we'll adjourn here for lunch and discuss the remaining issues this afternoon"
My brother, here, is ready to give information.
出自：Oxford English Dictionary
Dearest M.: Here I am in Boston,..looking out on a snowstorm.
出自： E. Hardwick
We're up to here in the shop.
我们店里的活儿忙得不可开交。 be up to here with sb/sth
I'm up to here with the children.They have been crying and arguing all day.
They are up to here with TV.