節約的英文：
to practice thrift; to economize; to save; to retrench; to spare

practice是什么意思：
n. 实践；练习；业务；惯例；诊所；律师事务所
v. 练习；实习；惯常地进行；执业；实践，实行

A practicing attorney;a practicing Catholic.
开业律师；虔诚的天主教徒

a practicing physician; a practicing Catholic.
执业医师；虔诚的天主教徒。

practice a professio
从事某职业，开业

thrift是什么意思：
n. 节俭

Thrift is good revenue
节约是个好收入

They were rightly praised for their thrift and enterprise.
他们勤俭节约，积极进取，得到了当之无愧的赞扬。

You cannot bring about prosperity by discouraging thrift
不提倡勤俭节约就不会有繁盛。

economize是什么意思：
v. 节约

an economical shopper;
精打细算的购物者;

economic planning
制订经济计划