在美国本土上使用这些加工方法代价会非常高，因为工厂必须符合比许多低成本国家更严格的环保和劳工标准。

These methods can be particularly expensive when done in the U.S., where factories must meet more stringent environmental and labor standards than in many low-cost nations.

youdao

在美国本土上使用这些加工方法代价会非常高，因为工厂必须符合比许多低成本国家更严格的环保和劳工标准。

These methods can be particularly expensive when done in the U.S., where factories must meet more stringent environmental and labor standards than in many low-cost nations.

youdao