【1】gorge 峡；峡谷(主要是指很深且两边带有陡峭边缘的很狭窄的峡谷，通常在那里会有一条河流流经过一座山脉或者一个具有坚硬石头的区域)

英文解释：A gorge is a deep, narrow valley with very steep sides, usually where a river passes through mountains or an area of hard rock. 

A deep gorge separates the two halves of the city. 有一道深谷把这座城市分成两部分。

Have you been to the Yangtse Gorges? 你去过长江三峡吗?

【2】ravine 沟壑；深谷；峡谷；山涧（主要是指两边具有陡峭的边缘/侧面的狭窄的很深的深谷）

英文解释：A ravine is a very deep narrow valley with steep sides. 

The soldiers shot down into the ravine. 士兵们向下往深谷里开枪。

The river had worn a ravine between the hills. 那条河在两山之间已造成一个深谷。

A car swerved to avoid a bus and plunged into a ravine. 一辆小车为避开一辆公共汽车急转方向，却一头坠入了峡谷之中。

A deep ravine is on the left of the road. 有一道深沟在马路左边。

The river washed a ravine into the mountainside. 河流在山的半山腰冲出了一条沟壑。

My horse jumps across the deep ravine, but all the others balk. 我的马纵身跃过了沟壑，其余的马却退缩了

【3】gully 隘谷；溪谷；冲沟（主要是指两边有陡峭边缘/侧面的很长的狭窄的溪谷）

英文解释：A gully is a long narrow valley with steep sides.

The bodies of the three climbers were located at the bottom of a steep gully. 在陡峭的隘谷谷底找到了3名登山者的遗。

It's unlikely that this gully was produced by nature. 这个溪谷不大可能是自然出现的。

A few days afterwards a heavy wagon passed through the gully. 几天后一辆大篷车经过了这个小峡谷。

The torrent scoured a gully down the hillside. 那激流顺山坡而下冲出一条水沟。