沟

In a sentence

• 山上有一个深深的沟。

  There is a deep ditch on the mountain.

  Here, '沟' refers to a ditch or ravine, indicative of a geographical formation.

• 为了灌溉农田，我们需要挖一条沟。

  To irrigate the farmland, we need to dig a trench.

  In this example, '沟' is used to describe a trench, serving as a constructed channel for water distribution.

• 我们需要通过沟通解决这个问题。

  We need to resolve this issue through communication.

  Here, '沟' forms part of the compound '沟通', meaning communication, illustrating its abstract use referring to connection or interaction.