因为欧盟在工业和渔业产品方面的共同关税处于相对较低的水平，这可能不会对英国出口产品造成难以逾越的障碍，也可以在保护英国公司免受进口冲击方面有一定的灵活性。
Because the common tariff is at a relatively low level on industrial and fishery products, this might not be an insuperable barrier for UK exports, and it would allow some flexibility in protecting UK companies from imports.