有一件事是肯定的，如果或当英国离开欧盟时，英国将会建立新的物流和经济障碍，没有人知道这些障碍会造成多大的分歧。
One thing is for sure, if or when the U.K. leaves the EU, it will erect new logistical and economic barriers, and no one knows how divisive they will be.
本文认为，影响农民工社会融入的关键是制度障碍和经济障碍。
The key obstacle to the agriculture laborers' melting into society is from the system, and the essential one is from the economy.
对于抗逆转录病毒治疗（ART）费用是否构成喀麦隆雅温得艾滋病毒阳性患者接受ART的经济障碍进行评估。
To assess the extent to which user fees for antiretroviral therapy (ART) represent a financial barrier to access to ART among HIV-positive patients in Yaoundé, Cameroon.
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