International Customs Valuation System and the curtailing of non-tariff barriers; raise tariff walls against foreign goods 国际海关估价制度与削减非关税壁垒建立关税壁垒以抵制舶来品
The government decided to raise tariff walls against foreign goods. 政府决定提高关税壁垒以抵制外国货。
For the erection of tariff walls has the same effect as the erection of real walls. 设立关税壁垒的效果,跟筑墙挡道没有两样。