英语翻译缺点建造成本高：由于要钻挖地底,地下建造成本比建于地面高.建设周期长：同样由于要挖地道,铺设铁轨,设备等等,以及各种调试工作.地铁从开始动工到投入运营需要很长的时间.前

Question

英语翻译
缺点
建造成本高：由于要钻挖地底,地下建造成本比建于地面高.
建设周期长：同样由于要挖地道,铺设铁轨,设备等等,以及各种调试工作.地铁从开始动工到投入运营需要很长的时间.
前期时间长：建设地铁的前期时间较长,由于需要规划和政府审批,甚至还需要试验.从开始酝酿到付诸行动破土动工需要非常长的时间,短则几年,长则十几年也是有可能的

Answer 1

Shortcomings
Construction costs are high:Due to dig at the end of drilling,underground construction costs higher than building on the ground.
Long construction period:the same due to digging tunnels,laying track,equipment,etc.,as well as various debugging.Subway put into operation from the beginning to start to take a very long time.
Pre-long:the building of the early stage of the MTR a longer time,due to the need for planning and government approval,and even need to test.Brewing from the beginning to the ground-breaking action requires very long time,a short while a few years or as long as 10 years is possible