1·The fields covered with snow became a vast expanse of whiteness stretching to infinity.
田野被大雪覆盖，白茫茫的一眼望不到边。
—— 《新英汉大辞典》
2·A vast expanse had melted away.
一大片冰川已经融化。
3·On this vast expanse of land.
在这片辽阔的土地上。
4·What a vast expanse of red!
我看它真的是红红的一片！
5·A vast expanse of the road.
路上一片茫茫。
6·We have a vast expanse of cultivable land.
我们有大片的耕地。
7·A vast expanse of golden crops lay before us.
我们眼前展现出一大片金黄色的作物。
8·And over there, it's an endless vast expanse.
还有那儿，简直是一望无际啊。
9·A vast expanse of golden crops lay before us.
我们眼前展现出一大片金黄色的庄稼。
10·Such a vast expanse of water! Isn't this Erdaohai Lake?
这么大一片海子！该不会是二道海吧？