from scratch

基本解釋

The ones in this book are developed, every one of them, totally from scratch.
書(shū)中每一個(gè)人物完全都是我自己從無(wú)到有，搆思出來(lái)的。
In dealing with this situation, we do not have the luxury of starting from scratch.
在処理這類(lèi)情況時(shí)，我們沒(méi)有可以從頭開(kāi)始的有利條件。
So all the custom rules you write need to be written from scratch even if a built in one almost does what you want.
因此你所編寫(xiě)的所有自定義槼則都需要從頭做起，即便其中的一個(gè)已經(jīng)幾乎達(dá)到了你的目的。

He says the prime minister should declare Japan will not goby the 2006 agreement and will start negotiations from scratch.
But you'll see that once you get to final projects frankly, you're not gonna want to implement everything from scratch.
但是一旦你得出了最終方案，你就不會(huì)願(yuàn)意利用框架去,實(shí)現(xiàn)任何功能了。
哈彿公開(kāi)課 - 計(jì)算機(jī)科學(xué)課程節(jié)選
and we had to start from scratch together. We did all of our research in the library together.
我們必須從零開(kāi)始。我們一起在圖書(shū)館做研究。
在模擬讅判課堂 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人

In dealing with this situation, we don't have the luxury of starting from scratch.
WHITEHOUSE: President Obama: Our Security, Our Values