We don't have time to start from scratch.

我们没有时间从草稿开始。

youdao

If we have to start from scratch then all take time.

如果我们必须从头开始，那么一切都需要时间。

youdao

We had to start from scratch together. We did all of our research in the library together.

我们必须从零开始。我们一起在图书馆做了所有的研究。

youdao

and we had to start from scratch together. We did all of our research in the library together.

我们必须从零开始。我们一起在图书馆做研究。

在模拟审判课堂 - SpeakingMax英语口语达人

You're not going to start for the rest of your life if you ever need to solve a problem with a computer from scratch, odds are you're going to reach for some off the shelf packages or libraries or tools that other people wrote so that people like us don't have to reinvent the wheel again and again.

如果你想用Scratch来解决问题,却使用其他人写的程序,或者利用现成的资料或工具,这样以来,我们的确可以避免做重复性的工作,但却永远学不会编程。

哈佛公开课 - 计算机科学课程节选

When no mice with the right genetic makeup are available, researchers have to start from scratch.

WSJ: Scientists focus on another Sandy loss _ lab mice

The best places are refugee economies, where people have had to start from scratch.

FORBES: Magazine Article

That dates from 1991, when it had to start from scratch after the Soviet collapse.

ECONOMIST: Estonia and Slovenia