When in manhood, he goes erect on two feet and when in old age, he supports his tottering legs with a stick.
成年时，他用两只脚直立，年老时，他用一根棍子支撑着蹒跚的双腿。
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.
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。
Economists have long studied how institutional constraints interfere with efficient economic choices, such as when special interests erect barriers to entry in product markets.
经济学家长期研究制度约束对有效经济选择的干涉，比如当特别的利率突破屏障进入产品市场的时候。
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