Probably by trade or barter.
No. In fact, Syria is in western Asia, Cambodia in southeast Asia.
Usually People give each other what the other person wants. Some people have a Christmas wish list of the items they want.
Yes they are probably the closest allies of each other.
Boarder
Yes his generals fought each other, splitting his kingdom and making themselves kings. They eventually settled as Egypt, Syria, Pergamon and Macedonia.
How different items compare to each other
A group or collection of items that are different from each other.
Syria and Israel theoretically share a border, but they are separated by the UNDOF forces which occupy a no-man's land between them. However, Syria and Israel both border Jordan and Lebanon. In the case of Lebanon, there is no land border with any nation other than Syria or Israel.
Because the people that talk about other people like them
Sales people would use a spreadsheet to keep track of the items they sell, the profit they made on each item and the price of the items.
People give each other gifts, among many other things.
Is a group of people relate each other