Viruses are much more difficult to identify in postmortem analysis than bacteria are.

在尸检分析中，病毒比细菌更难识别。

youdao

Some San Jose residents say that as inequality has grown in recent years, upward mobility has become much more difficult to achieve.

圣何塞的一些居民表示，随着近年来不平等现象的加剧，实现向上流动变得更加困难。

youdao

I found English much more difficult to learn.

我发现英语难学得多。

《新英汉大辞典》

So they quickly passed a bill that made it much more difficult for Chinese citizens to come to live in the United States.

VOA: special.2010.03.11

This is actually a piece of code that is really easy to think about recursively and is much more difficult to think about in other ways.

这确实是一段用递归思考起来非常容易,而其它方法特别麻烦的代码,这一段代码的意思就是。

麻省理工公开课 - 计算机科学及编程导论课程节选

the work doesn't seem to be that much more difficult from what's at other universities.

功课也没有比别的大学难很多。

对于赞助入学的看法 - SpeakingMax英语口语达人

Delaying that fiscal responsibility only makes the eventual debt reconciliation much more difficult or even an unviable option.

FORBES: U.S. Debt Bomb's Detonation Sped Up By Five Years

Designing the model while the building was still under construction made the process much more difficult.

WSJ: The Art of Designing Luxury Model Apartments

He said the introduction of new laws had made selling illegal scrap much more difficult.

BBC: Railway cable theft heavily reduced in Yorkshire