OG12-65看不懂，帮忙翻译一下，划一下结构，谢谢！！！

719870465

In a plan to stop the erosion of East Coast beaches,
the Army Corps of Engineers proposed building
parallel to shore a breakwater of rocks that would rise
six feet above the waterline and act as a buffer, so
that it absorbs the energy of crashing waves and
protecting the beaches.
?? (A) act as a buffer, so that it absorbs
?? (B) act like a buffer so as to absorb
?? (C) act as a buffer, absorbing
?? (D) acting as a buffer, absorbing
?? (E) acting like a buffer, absorb
答案选C
答案好选，但是我看不懂这句话，请牛牛帮忙划一下正确句子的结构，并翻译一下。纠结半天了，万分感谢啊！！！

leelh29

In....., the Army Corps of Engineers 主语，proposed谓语，that修饰rocks做定语，would rise... and act这里有平行； act as是固定搭配，后面的absorbing做伴随状语

tuscan

ls正解，很清楚了

719870465

谢，其实我是想问the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks 这部分什么意思？看不懂，可能我对某些词的特殊用法和意思不甚明白

sunshengkun666

ACE proposed了一个和防波堤平行的BUILDING

zhanhualv

谢，其实我是想问the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks 这部分什么意思？看不懂，可能我对某些词的特殊用法和意思不甚明白

-- by 会员 719870465 (2010/10/8 10:17:44)

parallel to shore 可能是你想问的

zhanhualv

ACE proposed了一个和防波堤平行的BUILDING

-- by 会员 sunshengkun666 (2010/10/8 10:40:41)

不对吧？

719870465

那可是相当想问啊

zhanhualv

我把它看成 形容词短语结构 做修饰成分了

719870465

我这么想，propose建议，shore支撑，parallel（名词）平行线，或者平行的一个什么东西。
翻译过来就是ace建议建造一堵平行线，来支撑一个暗礁上的堤坝。这个堤坝比水面高6英尺，可以用作缓冲设施。。。。附上图片解释。