Sentence examples for development is difficult from inspiring English sources

Modeling early heart development is difficult to achieve in a petri dish and tissue culture plates, the study authors said.

Evaluating the many PV technologies now in use and under development is difficult because they're all so different.

Yet spatially consistent and timely information on urban development is difficult to access particularly across international jurisdictions.

Training and development is difficult because turnover is so high: after one particularly bad year, 11 teachers left, taking their training and expertise with them.

The government largely controls land, and government approval for new development is difficult to obtain, even to house the wealthy and middle class, never mind the poor.

"Development is difficult," Mr. Egawa said in New York when asked why delivery of the jet to All Nippon Airways had been delayed twice.

It's true that the stages of that development are difficult to define precisely.

Compared to plant communities, the trajectories and processes of fungal community development are difficult to deduce.

RNA molecules are much larger than proteins, so obtaining molecules small enough for technique development was difficult.

Masuda and Tajiri's shared interest in electronics and insects inspired the initial Pokémon game's design, but while Tajiri was placed under the tutelage of Nintendo's master designer Shigeru Miyamoto, development was difficult.

The one-one count is another of Dykstra's baseball metaphors for life, meant to illustrate that some moments, and the choices they bring, are more fateful than others (i.e., the next pitch makes all the difference), or, in this case, that circumstances set in motion during the early stages of development are difficult to overcome later on.