gullies

n.

溪谷( gully的名词复数 )；（雨水冲击而成的）沟渠；

v.

溪谷( gully的第三人称单数 )；（雨水冲击而成的）沟渠；

gully erosion冲沟侵蚀；挖深浸蚀；雏谷侵蚀

1. It's unlikely that this gully was produced by nature.
   这个溪谷不大可能是自然出现的。
2. 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。
3. The torrent scoured a gully down the hillside.
   那激流顺山坡而下冲出一条水沟。

Recent gullies on Mars and the source of liquid water
Recent gullies on Mars and the source of liquid water
Geologic settings of Martian gullies: Implications for their origins
Observations of martian gullies and constraints on potential formation mechanisms
Development of check-dam systems in gullies on the Loess Plateau, China
Formation of recent martian gullies through melting of extensive water-rich snow deposits.
Using LiDAR data to map gullies and headwater streams under forest canopy: South Carolina, USA
Formation of recent gullies and debris-flows on Mars by the melting of near-surface ground ice at high obliquity
Topographic effects on the distribution of surface soil water and the location of ephemeral gullies
Comparison of routing algorithms for digital elevation models and their implications for predicting ephemeral gullies