from scratch

基本解釋

The ones in this book are developed, every one of them, totally from scratch.
書中每一個(gè)人物完全都是我自己從無到有，搆思出來的。
In dealing with this situation, we do not have the luxury of starting from scratch.
在処理這類情況時(shí)，我們沒有可以從頭開始的有利條件。
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.
我們必須從零開始。我們一起在圖書館做研究。
在模擬讅判課堂 - SpeakingMax英語口語達(dá)人

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