Over the last decade, the use of countertrade in international commerce has become more widespread.

在过去的十年，贸易在国际商业活动已经应的越来越广。

Reciprocity includes more than gifts and favors; it also applies to concessions that people make to one another.

不仅仅包括礼物和优待；它对人们之间相作出的让步也同样适。

Nor need we here examine the effect of import quotas, exchange controls, bilateralism and other means of reducing, diverting or preventing international trade.

我们无需在这里探讨进口配额、外汇管制、双边，以及其他减低、阻碍进行国际贸易的手段的影响。