在欧洲议会关心的重要问题上，例如贸易，泛欧洲共同市场的建立，以及重大的环境问题等议题上，各自的成员国也有权自行处置。
The European Parliament deals with the important areas where individual countries have pooled their sovereignty, like trade, the creation of a pan-European market, and the biggest environmental issues.