The potential danger of abusing free trade is continuously increasing along with the unceasing reduction of tariffs and non-tariff barriers of different countries.
随着各国关税的不断降低和非关税壁垒的不断减少，滥用自由贸易的潜在危险正在不断增长。
2
The instruments by which imports are restricted are also somewhat different from and less transparent than traditional import tariffs, and are called non-tariff barriers (NTBs).
该仪器由进口限制也有所不同，那么透明，比传统的进口关税，并称为非关税壁垒（非关税壁垒）。
3
China has cut its customs tariffs step by step, as promised, and by 2005 its average tariffs had been reduced to 9.9 percent, and most non-tariff measures had been cancelled.