"它高过了树梢，
筑起一条路从陆地直达天际，"
“了”字去掉是不是顺一些？
下面一句感觉有点冗长，跟整首诗似乎不太搭，直接省去“筑路”这一说法呢？不知道会不会有违反原意之嫌，呵呵，但有个“达”字似乎也可以包含这层意思了
The Rainbow
~Christina Rossetti
Boats sail on the rivers,
And ships sail on the seas;
But clouds that sail across the sky
Are prettier than these.
There are bridges on the rivers,
As pretty as you please;
But the bow that bridges heaven,
And overtops the trees,
And builds a road from earth to sky,
Is prettier far than these.
小船在河里荡漾，
大船在海上扬帆；
而 云彩在天空四处飘荡
比它们更欢。
河上有桥，
恰如你喜欢的那样美好；
而 彩虹在天上搭桥，
它高过了树梢， (高高挂在树梢)
筑起一条路从陆地直达天际， (路从地面直上云霄)远比它们美妙。