Sentence examples for have proven tricky from inspiring English sources

Hefce takes responsibility for providing the evidence behind policy decisions and including experts and representatives in all decisions and at every level - things that have proven tricky for government departments to do successfully.

While the rest of the world has moved towards marriage equality, Australia has fallen behind bogged down in debates over plebiscites, parliamentary votes, and six words that have proven tricky to shake free from: "between a man and a woman".

(Although researchers have been using a similar technique with bacteria for years, mammalian cells have proven trickier to control).

Weather-based claims have proved tricky.

But such harsh ideas have proved tricky to implement.

More recent waves of Asian deals have proved tricky, too.

But attempts to produce the silk in large amounts have proved tricky, not least because spiders are cannibalistic and territorial so collecting the material is not economically viable.

But building one has proven tricky.

The age-sex gap has proven tricky to address.

And the remote-rental model has proven tricky, Netflix notwithstanding.

Now, CRISPR is helping speed up the process in many diverse animal models, but applying it to corals (don't be fooled — corals are animals, not plants) has proven tricky due in part to their infrequent reproduction.