A trench cut in the earth.

沟；壕。

To make a trench.

掘沟。

To crash-land on water.

迫降水面。

To surround with a trench.

用沟围住。

To cause to run into a trench.

使陷入沟中。

To crash-land (a plane) on the water.

迫降于水上。

To get rid of.

【俚】抛弃；丢弃(飞机)。