N-PROPER
石油输出国组织；欧佩克
OPEC is an organization of countries that produce oil. It tries to develop a common policy and system of prices. OPEC is an abbreviation for (缩略=) 'Organization of Petroleum-Exporting Countries'.
例句
Each member of OPEC would seek to maximize its own production.
石油输出国组织的每个成员国都寻求最大限度地提高本国石油产量。