By the way, before leaving this subject, I would like to add a few comments.
在结束这个问题之前顺便一提,我希望能再提出一些看法。
These days, it is differences in national regulations, far more than tariffs, that put sand in the wheels of trade between rich countries.
当前,是各国管理条例上的差异,而不是关税阻碍了发达国家之间的贸易。