“开沟”的拼音？

“开沟”的英语可以翻译为：ditching，guttering，trenching，ditch ...

我们开沟排去污水.We dug trenches to drain away the dirty water.他们忙着在田里开沟排水.They were busy trenching the fields for draining.农民们冒雨开沟排水.The farmers dug ditches in the rain to lead away the flow....