9. I most want to go to see the Lushan waterfall.
我最想看廬山瀑布。
還能這樣說：
I am eager to see the Lushan waterfall.
I desire to appreciate the Lushan waterfall.
應用解析：
see far and wide 高瞻遠矚；
see the sights of Suzhou 游覽蘇州名勝；
see dimly 朦朧地看見
10. The apple tree is flooded with red apples.
蘋果樹上結滿了紅蘋果。
還能這樣說：
The apple tree bears lots of red apples.
Numerous red apples are in the tree.
成語：
Throw away the apple because of the core.
因噎廢食。
11. A colorful rainbow came out after the rain.
雨后出現一道彩虹。
還能這樣說：
There appeared a colorful rainbow after the rain.
A colorful rainbow turned out after the rain.
應用解析：
all the colors of the rainbow （像彩虹般的）絢麗多彩；
chase (after) rainbows 追彩虹（意指因追求不可能實現的夢而虛度很多時間）
12. In my opinion, natural landscape is more fascinating than manmade one.
我認為自然美景比人工造景更吸引人。
還能這樣說：
I would say manmade landscape is less attractive than the natural one.
I think natural scenery catches more people's eyes.
應用解析：
air one's opinions 公開發表意見；
have a good opinion of oneself 自視甚高；自信；自高自大