barrier

Duties and taxes are the most obvious barrier to free trade.

关税及其他各种税是自由贸易最明显的障碍。

Trying to criticize writing on the fly is possibly the single greatest barrier to writing that most of us encounter.

试图匆忙地修改写作内容可能是我们大多数人在写作中遇到的最大障碍。

America's injured workers could sue for damages in a court of law, but they still faced a number of tough legal barriers.

美国受伤的工人可以向法院提出索赔，但他们仍然面临着许多艰难的法律障碍。

The demonstrators broke through heavy police barriers.

示威者们冲破了警方的重重关卡。

The highways have wide lanes and shoulders, dividing medians, or barriers, long entry and exit lanes, curves engineered for safe turns, and limited access.

高速公路有宽阔的车道和路肩、中央分隔带、路障、长长的出入口车道，以及为安全转弯和限制通行而设计的弯道。

Existing facilities must remove barriers if the removal can be accomplished without much difficulty or expense.

如果拆除没有太大困难或不用花费过多的话，现有的设施必须拆除障碍物。

A severe storm destroyed a natural barrier between the house and the lake.

一场猛烈的暴风雨摧毁了房屋和湖泊之间的天然屏障。

They are fearful that unemployment will soon break the barrier of three million.

他们担心失业人数不久将突破300万大关。