1
an expanse of something
表示某物的一大片区域，后接名词。
An expanse of green fields stretched before us.
一片绿色的田野展现在我们面前。
广阔区域；浩瀚
先理解核心含义，再看它在真实句子里的用法。
广阔区域；浩瀚
A wide stretch or area, typically of sea, sky, or land.
An expanse of green fields stretched before us.
一片绿色的田野展现在我们面前。
广阔的区域,通常指海、天空或陆地；大片。
A wide stretch, usually of sea, sky, or land.
扩展或延伸的程度；范围。
An amount of spread or stretch.
The Sahara Desert is a vast expanse of sand and rock.
撒哈拉沙漠是一片广袤的沙石区域。
From the mountaintop, we could see an endless expanse of green forest.
从山顶望去，我们能看到一望无际的绿色森林。
The night sky was a clear expanse dotted with thousands of stars.
夜空是一片清澈的广阔区域，点缀着成千上万颗星星。
表示某物的一大片区域，后接名词。
An expanse of green fields stretched before us.
一片绿色的田野展现在我们面前。
特指某物的广阔面积或范围。
The expanse of the ocean was breathtaking.
海洋的广阔令人叹为观止。
复数形式，强调多个或连续的大片区域。
The desert offered vast expanses of sand.
沙漠呈现出广阔的沙地。
Not this
The desert expanses for miles.
Use this
The desert expanse stretches for miles.
学习者将名词'expanse'误用为动词。'expanse'是名词，表示‘宽阔的区域’，应使用动词'stretches'或'extends'来描述延伸。
Not this
He looked out over the vast expanse desert.
Use this
He looked out over the vast expanse of desert.
遗漏了介词'of'。'expanse'常与'of'连用构成'an expanse of + 名词'结构，表示‘一片…的区域’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
广阔的
We looked out over a vast expanse of desert.
我们眺望着一片广阔的沙漠。
宽阔的区域
The wide expanse of the ocean stretched before us.
宽阔的海洋展现在我们面前。
开阔的空间
They rode across the open expanse of the prairie.
他们骑马穿过了开阔的草原。
一大片
A great expanse of forest was visible from the hilltop.
从山顶可以看见一大片森林。
广阔的水域
The lake is a calm expanse of water surrounded by mountains.
这个湖是一片平静的水域，四面环山。
Use expanse naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象一个巨大的平底锅（pan）向外（ex）延伸，形成宽阔的平面，这就是expanse。
语域：formal 常见场景：literary description、geographical description、astronomical description 该词通常用于书面或文学语境，描述广阔的空间，如天空、海洋或平原等。在日常口语中较少使用。
常与 of 连用，表示'一片...'。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.