Sentence examples for is usually explained by from inspiring English sources
The high rate is usually explained by the deteriorating health of the male population generally, but it may also be due to efforts by people like Mrs. Obraztsova.
Hull's cheapness (and presumably Southport's and Barrow's too) is usually explained by the lack of career and leisure opportunities here, in turn put down to our isolation from Britain's economic centres.
This is usually explained by Hergé's "naivety", as an author of children's comics (a defence also used for P.G. Wodehouse).Alas, none of those arguments survive a reading of a biography of Hergé by Philippe Goddin, published in 2007.
Why this should be so is usually explained by two things: the gyroscopic precession caused by the spinning front wheel, and the castor effect resulting from the front wheel's contact point with the road trailing behind the steering axis of the front forks—in much the same way that the trailing wheels of a shopping trolley allow it to be steered easily.
The effect is usually explained by an additional adsorptive transport mechanism for the gas ("shuttle" or "grazing" effect).
This common phenomenon is usually explained by a decrease in test-taking motivation and/or an increase in fatigue.
Discrepancies between the short term statistics are usually explained by differences in when prices are measured (for example at mortgage approval or on completion) and the mix of properties.
Natural rubber (NR) exhibits great fatigue properties which are usually explained by its ability to crystallize under strain.
These social disparities in the process of educational attainment are usually explained by differences in the parental social status.
Difficult actions (eg Jill's riding a unicycle) are usually explained by appealing to enabling factors (eg She practiced a lot).
Despite the general interest in designing MMP-2 inhibitors, the results with many of the drug candidates were disappointing, their failure was usually explained by cross-reactions with other MMPs.
