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5、The bridge is so long that the shape of the earth had to be taken into account by its designer.
take into account=take into consideration=take account of 考虑到
-- We have to take the date into account when we have the meeting.
6、Two great towers support four huge cables.
Support=hold up 举起, 支撑
7、The towers are built on immense underwater platforms made of steel and concrete. The platforms
extend to a depth of over 100 feet under the sea.
Extend(延伸, 伸展)=reach, stretch
-- a railway extends to the next city.
8、These alone took sixteen months to build.
=It took the workers sixteen months to build the platforms.
9、Above the surface of the water, the towers rise to a height of nearly 700 feet.
extend to a depth of… 伸展的深度
extend to a length of… 伸展的长度
extend to a width of… 伸展的宽度 (width n.宽度, 宽广 )
rise to a height of… 伸展的高度