练习材料：L17-2： The longest suspension bridge in the world 时长：64s
Two great towers support four huge cables.
The towers are built on immense underwater platforms make of steel and concrete.
The platforms extend to a depth of over 100 feet under the sea.
These alone took sixteen months to build.
Above the surface of the water, the towers rise to a height of nearly 700 feet.
They support the cables from which the bridge has been suspended.
Each of the four cables contains 26,108 lengths of wire.
It has been estimated that if the bridge were packed with cars, it would still only be carrying a third of its total capacity.
However, size and strength are not the only important things about this bridge.
Despite its immensity, it is both simple and elegant, fulfilling its designer's dream to create 'an enormous object drawn as faintly as possible'.
任务配置：L0+L4
知识笔记：
cables
n. 1.[u][c] （系船用的）缆绳；（支撑桥梁等用的）钢索thick strong metal rope used on ships, for supporting bridges, etc.
2.[c][u] 电缆；线缆a set of wires, covered in plastic or rubber, that carries electricity, telephone signals, etc.
3.[u] 电报a message sent by electrical signals and printed out
v. 1.[t][i] ~ (sb)（给…）发电报to send sb a cable
Two great towers support four huge cables. 两座巨塔支撑着四根粗大的钢缆
immense adj. 1.极大的；巨大的extremely large or great
eg： He had the immense good fortune to be recruited when the company was still offering generous stock grants to all new hires.
他的运气实在太好了，这个时候加入谷歌，公司给每个新员工慷慨的提供公司股票。
suspend v.
1.~ sth/sb (from sth) (by/on sth) 悬；挂；吊to hang sth from sth else
2.~ sth 暂停；中止；使暂停发挥作用（或使用等）to officially stop sth for a time; to prevent sth from being active, used, etc. for a time
3.~ sth 延缓；暂缓；推迟to officially delay sth; to arrange for sth to happen later than planned
4.[usupass] ~ sb (from sth) 使暂时停职（或停学等）to officially prevent sb from doing their job, going to school, etc. for a time
5.悬浮to float in liquid or air without moving
They support the cables from which the bridge has been suspended.
高塔支撑着钢缆，而钢缆又悬吊着大桥。
练习感悟：
是不是和大家版本不一样，所以总被说读得快，我是按照原文掐表计时的呀～今天文章比较难，生词多，数字的部分总是跟不上，练习了半个小时，差不多速度跟上了，再进一步扣了发音fulfilling的后半部分filling的音标总听起来原文读的是fulling，再仔细听其实应该是filling中间i发的是元音i 不是u。