Sentence examples for extremely difficult to ascertain from inspiring English sources
In several towns along the Turkey-Syria border, rebel commanders can be found seeking weapons and meeting with shadowy intermediaries, in a chaotic atmosphere where the true identities and affiliations of any party can be extremely difficult to ascertain.
If only defensive use of a pass-through defense were barred, or if it were extremely difficult to ascertain the percentage of an overcharge that the utility passed through, then the supplier of natural gas might potentially have to pay overlapping damages to successive purchasers at different levels in the distribution chain.
But the extent to which the movement actually contains hardline committed jihadists is extremely difficult to ascertain.
In my practice, the health effects are often subtle, making it extremely difficult to ascertain whether the problem is corn, pollutants, food adulterations, fabric softener, sunscreen additives or a high pollen count.
The biology of sycophagine NPFW remains poorly known and extremely difficult to ascertain.
The timing of exposure to a chemical is extremely difficult to ascertain from these study designs.
"It is extremely difficult to watch".
Even though V158411 is an extremely selective inhibitor of Chk1, it is difficult to ascertain the absolute selectivity of any small molecule kinase inhibitor.
