“壁垒”怎么读

“壁垒”的英语可以翻译为：ampart，barrier，bulwark，vallation，vallum ...

降低贸易壁垒导致出口商各自为政。The lowering of trade barriers has led to a free-for-all among exporters.关税和税收是自由贸易的最大壁垒。Duties and taxes are the most obvious barrier to free trade.精神上、地理上的壁垒都在热切的探索者面前退缩.Mental as well as geographical h...