Sentence examples for proved very difficult as from inspiring English sources

This proved very difficult as his French was rusty.

However, this proved very difficult, as many of the packages are either not freely retrievable, no longer maintained or fraught with practical problems (Table 1).

This task has, in fact, proved very difficult as such lesions need to be made at the level of the septum (where the pathways split) yet damage to this site will involve much of the septum itself.

Legislative successes for just the transgender community are proving very difficult as a result.

That dropped him into a fight with the McLaren of Kevin Magnussen, who proved very difficult to pass as a result of the greater power of his Mercedes engine.

As a result, it has proved very difficult to construct generalized physical descriptions of pulverized coal combustion for incorporation into reliable mathematical models suited to industrial applications.

It proved very difficult to obtain new matériel in wartime, however, especially as the Dutch had ordered some of their new equipment from Germany, which deliberately delayed deliveries.

Whether these individuals were female or bisexual was however not assessed, as proper detection of antheridia proved very difficult without disturbing the gametophytes.

This proved very difficult and expensive.

However, making that next step proved very difficult.

Unfortunately, it proved very difficult to reconstruct causal notions in statistical terms, and by the 1980s most philosophers had abandoned the attempt as hopeless.