barrier rampart vallum vallation bulwark wall
The lowering of trade barriers has led to a free-for-all among exporters.
降低贸易壁垒导致出口商各自为政。
—— 给力词典精选Duties and taxes are the most obvious barrier to free trade.
关税和税收是自由贸易的最大壁垒。
—— 辞典例句Mental as well as geographical horizons were receding before eager explorers.
精神上、地理上的壁垒都在热切的探索者面前退缩。
—— 辞典例句Beyond four knifelike walls a new life for him waited vaguely.
在四座刀一般壁垒那边,一种新生活模模糊糊地在等候着他。
—— 辞典例句The practical result was to harden the battle lines.
实际的结果就是双方壁垒更加分明。
—— 辞典例句