A " timesaver" is something that lets you do something faster.

” “节省方法” 可以让你更快地做某事。

I think the biggest timesaver for cooking is just prepping.

我认为做饭最节省就是准备。

Danny is saying that the cash register will not be such a (or a very good) timesaver.

丹尼说银机不会这样（或）节省。

Like railways, an author rhapsodised, indexes have " cleared the way; they have levelled mountains and straightened the most tortuous paths… What a timesaver! … this is electricity! "

一位作家热情地写道，索引就像铁路一样“扫清了道路；它们夷平了高山，拉直了最曲折小路… … 真省！… … 令人激动！“。