We must dig a trench to drain away the water.

我们必须挖一条沟排水。

youdao

Clean the chestnuts up with water. Drain away the water. Cut a long crevice on each chestnut the with the knife.

把板栗外面洗干净，沥干水分，用刀在板栗上开个口子。

youdao

She pulled out the plug and let the water drain away.

她拔起塞子放掉了水。

《牛津词典》

Network Rail said workers were laying a pipe underneath the track to allow the water to drain away onto the other side.

BBC: Bridgend flooding: Brackla flats evacuated

He said there was concern for more low lying areas as the water begins to drain away.

BBC: Somerset floods: Warnings remain after heavy rain

Meanwhile, some people living in Kilham claim the flooding last month was made worse because the council did not clear the gullies to allow the flood water to drain away.

BBC: Burton Fleming covered in snow