The phrase "difficult endeavors" is correct and commonly used in written English.
It is typically used to describe challenging or arduous tasks or activities. Example: Despite facing numerous obstacles, the team remained determined and committed to their difficult endeavors of completing the project on time.
Just as he shifted from painting to photography Mr. Wang has lately turned to video, making short works that, in a familiar YouTube idiom, compress lengthy or difficult endeavors into just a couple of minutes.
The appointment of someone with no political or civil service background suggests that the government may be more willing and able than it has been in the past to tap the expertise of the country's successful business fraternity in executing difficult endeavors.
The appointment of someone with no political or a civil service background suggests that the government may be more willing and able than it has been in the past to tap the expertise of the country's successful business sector in executing difficult endeavors, many of which have languished under career politicians and bureaucrats.
When you consider this feedback loop — the collection of high-resolution visual data, the ability to process it quickly and the fuel it provides to create even deeper-learning algorithms — it's reasonable to consider tackling what are now extremely expensive and difficult endeavors.
This continues to be a very difficult endeavor.
In politics, sifting for the truth can be a difficult endeavor.
"This is a very difficult endeavor, but we are trying to show leadership".
In our conversation, I tried to get a sense of why understanding crime can be such a difficult endeavor.
Between November 1st and December 15th, I visited eleven cities. Doing those readings was the most difficult endeavor of my life.
Some success in this difficult endeavor has already been achieved — in the clinic, not just the laboratory.
His strength and expertise in this difficult endeavor will be greatly missed by all who labor in this important cause.
