使下水

They launched a new passenger liner.

他们一艘新的客轮下水。

Overpumping groundwater for drinking water and irrigation has caused water levels to decline by tens of metres in many regions, forcing people to use low-quality water for drinking.

过度抽取下水做为饮水和来灌溉在许已经水位下降几十米，迫人们量较差的水来做为饮水。