Northeastern Brazil's climate is largely driven by the Intertropical Convergence zone-an equatorial region where northern and southern hemisphere easterly trade winds converge.

巴西东北部的气候主要是热带辐合带，这是一种南北半球偏东信风衔接的赤道地区气候。

youdao

Just as trade caused global commodity prices to converge, so mass migration resulted in a convergence of wage levels.

ECONOMIST: Business books (5)

What happened was, is a group, a subset of APEC countries came together and said let's see if we can create a high-standard agreement that is dealing with tariffs and non-tariff barriers to trade, but let's also incorporate a whole range of new trade issues that are going to be coming up in the future -- innovation, regulatory convergence, how we're thinking about the Internet and intellectual property.

WHITEHOUSE: President Obama at the APEC Business Summit