irrigation

名词 irrigation:

1. supplying dry land with water by means of ditches etc
2. (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution

1. A long narrow trench or furrow dug in the ground, as for irrigation, drainage, or a boundary line.
   沟渠，排水沟，水道在地面上狭长的沟渠或细沟，用于灌溉、排水或用作分界线
2. Water is channelled through a series of irrigation canals.
   把水引入一系列灌溉渠中。
3. We used the money to set up an irrigation project.
   我们把钱用在兴建灌溉工程上了。
4. Irrigation is needed to make crops grow in dry regions.
   干旱地区需要灌溉才能使作物生长。