listening Vocabulary
skyscraper
suspension bridge
a bridge in which the weight of the deck is supported by vertical cables suspended from further cables that run between towers and are anchored in abutments at each end.
Dams
a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.
beams
is a structural element that primarily resists loads applied laterally to the beam's axis. Its mode of deflection is primarily by bending
Roadway
Towers
Drawbridges
especially one over a castle's moat, which is hinged at one end so that it may be raised to prevent people crossing or to allow vessels to pass under it