省力的英文：
labor-saving

参考例句：

They find it more enjoyable and physically less demanding.
他们发现这样更舒服、省力。

This machine is designed to save you effort, and keep your work surfaces tidy into the bargain.
这种机器既省力，又能保持工作台面的整洁。

The book is more easily read than described.
阅读书籍要比叙述其内容更省力。

labor是什么意思：
n. 劳动；工作；劳工；英国工党
v. 劳动；费力地前进

It is a scientific labor.
这是一项艰巨的科学工作。

He is satisfied with your labors.
他对你干的活儿很满意。

Genius is nothing But labor and diligence.
天才不过是勤奋而已。

Their labor efficiency is very high.
他们的工作效率很高。

The laborer is worthy of his hire.
做工的人应得其报酬。

saving是什么意思：
n. 节约；存款；挽救
adj. 节约的；保存的；补偿的；救助的
prep. 除…以外
v. save的现在分词

Saving is getting
节约等于收入

Save the macro.
保存这个宏。

Her savings were in the Post Office Savings Bank.
她的钱存在邮政储蓄银行里。

My savings amount to $2001.
我的储蓄共达2000 美元。

A stitch in time save nine.
一针及时省九针。