“blue gold”造句，怎麼用blue gold造句

And this dam is just one of dozens being planned or built in what has been called a "blue gold rush, " an infrastructure spree that is transforming the South American interior.

三個或三以上且後附連詞的名詞，除最後一項外，都要在彼此之間添加逗號 如： red, white,and blue gold, silver, or copperHeopenedtheletter,readit,andmadeanoteofitscontents. 這裏的逗號常稱為“連續”逗號。