Sentence examples for it was often challenging from inspiring English sources

Although it was often challenging to determine its extent, invasion was present in 71%.

It was often challenging to decipher which exposure day had the most impact during those multi-day studies.

Especially to the category Recreation and leisure it was often challenging to link the responses at the 3rd level because the codes did not have a high enough level of detail.

However, it is often challenging to understand various regenerative studies and to interpret their results.

It is often challenging to understand the overall performance of a design if there are many performance indicators.

With current methods, it's often challenging to image ovarian tumors smaller than one centimeter in diameter without surgery.

He said it's often challenging for an intelligence official to compromise with a president, who has his own vision and instincts separate from the facts.

It is often challenging to precisely manipulate the release behavior of hydrophilic drugs that is believed to be crucial for a satisfactory therapeutic outcome.

It is often challenging to analyse the pore structure of biological samples because they are sensitive to drying or changes in the composition of liquid within the samples.

Currently, due to the increasing numbers of simulation software packages available in the market, it is often challenging to choose a suitable package that meets users' demands.

Multicomponent supramolecular systems could be used to prepare exciting new functional materials, but it is often challenging to control the assembly across multiple length scales.