Unraveling the complex set of regulations that tore down obstacles to trade and commerce with Cuba could take longer and be more challenging.

而撤销一系列消除与古巴进行商贸活动的障碍的法规，可能需要更长时间，难度也会更大。

youdao

Currency-conversion costs remain one of the biggest obstacles to cross-border trade.

货币兑换成本仍是跨境贸易的最大障碍之一。

《柯林斯英汉双解大词典》

We hope that the US will fully recognize the significance and reciprocity of China-US economic cooperation and trade and stop making excuses for setting obstacles to it.

我们希望美方人士能够充分认识中美经贸合作的重要性和互利性，不要找借口给两国经贸合作造成障碍。

youdao

It is an ambitious effort, covering tariffs and nontariff barriers, including obstacles to trade that arise out of different regulations and standards.

WSJ: Trans-Atlantic Trading Partners Barter Over Rules

Customs points throw up huge obstacles to trade.

ECONOMIST: Regional economic integration has a long, long way to go

As workers all, we produce in order to consume, and when unnatural obstacles retard our ability to trade our labor for what we want, we face a tax, along with a certain loss of liberty.

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