1
a ravine
ravine 是可数名词，表示某一条具体的峡谷时用不定冠词 a。
A ravine separates the two villages.
一条峡谷隔开了两个村庄。
峡谷；冲沟；溪谷
先理解核心含义，再看它在真实句子里的用法。
峡谷；冲沟；溪谷
a deep, narrow, steep-sided valley formed by running water
A ravine separates the two villages.
一条峡谷隔开了两个村庄。
地表上由流水冲刷形成的深而窄的峡谷。
A deep narrow valley or gorge in the earth's surface worn by running water.
深而狭窄的陡峭山谷(尤其是由流水形成的)
a deep narrow steep-sided valley (especially one formed by running water)
The hikers followed a narrow trail that wound through the ravine.
徒步旅行者们沿着一条蜿蜒穿过峡谷的狭窄小径前行。
After the storm, water rushed along the bottom of the ravine.
暴风雨过后，水流沿着峡谷底部奔流。
They built a small bridge across the ravine to reach the farm.
他们建了一座小桥横跨峡谷，以便到达农场。
ravine 是可数名词，表示某一条具体的峡谷时用不定冠词 a。
A ravine separates the two villages.
一条峡谷隔开了两个村庄。
特指谈话双方都知道或上文提到过的峡谷时，用定冠词 the。
The ravine is too wide to jump across.
这条峡谷太宽，跳不过去。
in a ravine 泛指某条峡谷中，in the ravine 则特指那条峡谷中，二者都常用于描述位置。
The hikers lost their way in a ravine.
徒步者在一条峡谷里迷了路。
Not this
The car fell into ravine.
Use this
The car fell into a ravine.
ravine 是可数名词，单数形式不能单独使用，前面需要不定冠词 a。中文没有冠词，所以学习者容易漏掉 a；这句话表示落入一条冲沟/峡谷，必须有 a ravine。
Not this
The river has carved many ravine in the mountain.
Use this
The river has carved many ravines in the mountain.
many 后接可数名词复数，ravine 的复数形式是 ravines；这里表示多条冲沟，所以必须用 ravines，而不是单数 ravine。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
深深的峡谷
The hikers stopped at the edge of a deep ravine.
徒步旅行者在深深的峡谷边缘停了下来。
狭窄的峡谷
A narrow ravine separated the two farms.
一条狭窄的峡谷隔开了两个农场。
陡峭的峡谷
The car slid down into a steep ravine.
汽车滑下陡峭的峡谷。
穿过峡谷
They built a wooden bridge to cross the ravine.
他们建了一座木桥穿过峡谷。
跌入峡谷
Be careful not to fall into the ravine.
小心不要跌入峡谷。
在峡谷底部
The stream runs at the bottom of the ravine.
溪流在峡谷底部流淌。
辛巴，快跑！离开那道峡谷！
The hikers carefully made their way down the narrow ravine.
徒步旅行者小心翼翼地沿着狭窄的峡谷下行。
Use ravine naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记法：/rəˈvin/ 谐音“拉文”，想象急流把山体拉出一道又深又窄的峡谷。
语域：neutral 常见场景：geographical description、literary writing、travel guides 通常用于书面描述，多出现在地理、文学或旅行指南中，属于中性偏正式的词汇；日常口语中较少使用。
Ravine 与 machine、marine、serene、vaccine、cuisine、careen 押韵，重读部分均为 /-iːn/。注意拼写以 -ine 结尾但发音不同的词，如 engine /ˈɛndʒɪn/、discipline /ˈdɪsəplɪn/、fine /faɪn/。
Dictionary facts from ECDICT, WIKTIONARY.