the field of international economics concerns the movement across national boundaries of goods,services and productive factors.it is the conduct of trade,rather than the reasons for its being or the benefits dirived from it,that distinguishes international from domestic transactions.
同胞们，帮忙翻译一下了，
顺便介绍几个权威性的翻译网站。
谢谢拉
Like it ,do it
Hate it ,do it
So everything in hand!
