1. Although payment companies'chief source of money is not deposits, they are eating into that part of banks'business.
2. chief source的反义词
2. The Maghreb countries have attracted little more than a trickle of foreign investment, and the chief source has been Europe.
3. chief source
3. The US missile defense plan has been vociferously opposed by Russia and has become a chief source of tension between the two countries.
4. Blogs were considered the " coolest " modern communication medium, but magazines remained popular and the chief source of fashion information.