请问这句话什么意思

abc791201064

这是prep101 请问红色的是神马意思呢
Many environmentalists, and some economists, say that free trade encourages industry to relocate
to countries with ineffective or poorly enforced antipollution laws, mostly in the developing world,
and that, in order to maintain competitiveness, rich nations have joined this downward slide toward
more lax attitudes about pollution.

enkyklios

rich nations have joined this downward slide toward more lax attitudes about pollution.

downward slide 其实指的 ineffective or poorly encofced pntipollution ，，因为工厂要规避环保方面的问题都跳到了发展中国家(那里法律执行的不严格）， 发达国家为了保持竞争力加入了这（对环保问题睁一眼闭一眼的）个行列

abc791201064

我好想懂了 哈哈   谢谢您