Subways have been most competitive in cities like New York that have high prices for parking, and tolls for Bridges and tunnels, discouraging car use.
地铁在很多城市非常有竞争力,比如纽约,停车费用昂贵和大桥隧道通行费等等都限制了汽车的使用。
Mr Edelman survived, escaping with a handful of colleagues along tunnels barely two feet high, slimy water up to his lips, to safety.
爱德曼与少数难友一道,沿着仅两英尺深的下水道,伴着漫进嘴唇的泥泞安全逃离,得以幸免。
This high packing density accounts for the strength and stability of cement, which makes it useful for structures like tunnels and Bridges.
这种高堆积密度说明了水泥的高强度和稳定特性,使其成为隧道和桥梁等建筑物的理想材料。
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