I have to add that this is a process prone to a lot of trial and error, so it might take a while until you are satisfied with the results.

对此，我不得不多说一句，这是一个需要反复尝试修正的过程，所以，在你满意之前，恐怕要花上些时间。

youdao

This part is open to a lot of trial and error, so using a mask will help us recover some of the parts we may have accidentally deleted.

在这一阶段，我们需要反复尝试修改，而使用蒙版会帮助我们恢复我们意外擦除的部分。

youdao

There will be a lot of trial and error in the process of creating new, useful organisms.

创造新的实用的生物体的过程会在大量试错中曲折前进。

youdao

"It's a lot of trial and error. It's a process.

VOA: special.2009.05.18

If the case goes to trial, a lot of details about problems between the two men could be aired in public.

FORBES: Howard Stern and Mel Karmazin Fall Out Over Money

"After the death of Michaela McAreavey, the trial received a lot of media attention and it was in the interest of the public that the pictures were published".

BBC: Michaela McAreavey: Trial ends over newspaper pictures

And this trial has opened a lot of interesting ideas and knowledge about the police department.

NPR: 4 min 9 sec