Teo wrote:

1. We have juice at home in the refrigerator. 2. Whe have jucie in the refrigerator at home. What's the difference between the two sentences? Thank you very much for your reply.

The difference is what is being modified. In (1), "at home" modifies the location of the juice, and then is specified by "in the refrigerator."  In (2), "at home" modifies the location of the refrigerator.  Thus, these two sentences are equivalent to the following:

1.  We have juice.  That juice is at home.  The refrigerator is the part of our home where the juice is.

2.  We have juice.  The juice is in a refrigerator.  The refrigerator is in our home.

So you 1 if you want to emphasize the juice being at home (like when saying "should we buy juice? No, we have juice at home.") Use 2 when you want to emphasize that the juice is in the refriegator ("Juice is better when it is cold, so we have juice in the refrigerator at home.")