求助：萨缪尔森论文中一句话的翻译
second only in political appeal to the argument that tariffs increase employment is the popular notion that the standard of living  of the American worker must be protected against the ruinous competition of cheap foreign labour.

大意懂，但请详细地讲讲second only in political appeal to the argument在句中的意思。


另外  production sharing arrangement（以前称作 offshore assembly provisions 海外组装条款）该如何翻译？

谢谢。