1. 经济的;省钱的
Something that is economical does not require a lot of money to operate. For example a car that only uses a small amount of petrol is economical .
e.g. ...plans to trade in their car for something smaller and more economical...
把他们的车折价贴换成更小、更经济型车的计划
e.g. It is more economical to wash a full load.
满缸洗衣更经济。