We've done the difficult part of the job.

我们已完成了工作的困难部分。

《牛津词典》

The only difficult part was threading the cotton through the eye of the needle!

唯一困难的部分是将棉线穿过针眼！

《柯林斯英汉双解大词典》

I had thought the head was the most difficult part of the matter—oh!

我原以为脑袋才是最难过铁栅栏的——啊！

youdao

When they reached New Guinea, they were about to begin the most difficult part of the trip.

VOA: special.2010.05.26

What do you think is the most difficult part about studying English in the UK?

你觉得在英国，学习英语最难的部分是什么？

巴西的英语老师 - SpeakingMax英语口语达人

You've read all of one essay and you've read part of another, "Differance," and you've found him very difficult.

一整篇论文和另一篇论文的一部分，《延异》，大家已经发现了，德里达的作品很难懂。

耶鲁公开课 - 文学理论导论课程节选

Still, the most difficult part will be fitting the retail world with proper infrastructure.

FORBES: VeriFone Lends Google Wallet A Helping Hand

"I think the most difficult part about getting yourself to training is the motivation, " she says.

BBC: Decision time for British swimmer Achieng Ajulu-Bushell

Of course, the general, as he soon made himself, had a difficult part to play.

ECONOMIST: Emeka Ojukwu