non-tariff barrier
非关税壁垒，非关税障碍
The World Trade Organization (WTO) is dedicated to reduce tariff, cancel non-tariffbarrier and realize trade liberalization by multilateral trade negotiation.
世界贸易组织（WTO）致力于通过多边贸易谈判使各成员方不断降低关税，取消非关税壁垒，实现贸易自由化。
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