Sentence examples for difficult to develop from inspiring English sources

It's difficult to develop our game.

Does that make it difficult to develop a winning environment?

It hasn't made it difficult to develop a winning environment.

It is becoming increasingly difficult to develop new drugs active against resistant strains.

In contrast, virtues are habits, difficult to develop and therefore not accessible to all.

So far, however, RNA-related drugs have been difficult to develop.

It would have been difficult to develop stories like Watergate without anonymous sources.

But PlayStation 2 games are difficult to develop, and Sony's proprietary technology can be a drawback.

FEW places in the world have proved as difficult to develop as Haiti.

A commercially successful smart gun has, in fact, proved difficult to develop.

However, ISSs are either slow or very difficult to develop.