俭省的英文：
frugality
thriftly

a frugal meal
俭省的一餐

A frugal diet
俭省的饮食

We must practise the strictest frugality and economy.
我们必须实行最严格意义上的俭省节约。

Please try to eke the money out till the end or the year.
请把钱俭省点儿用，尽可能维持到年底。

She lives a frugal life.
她生活俭朴。

It is easy to go from frugality to extravagance,but difficult to go from extravagance to frugality.
由俭入奢易，由奢入俭难。

We should cultivate the good habits of diligence and frugality.
我们要养成勤俭节约的好风气。

This family practises frugality and avoids worldly exhibit.
这一家崇尚节俭，不喜浮华。

We must practise the strictest frugality and economy.
我们必须实行最严格意义上的俭省节约。