Sentence examples for are difficult to cross from inspiring English sources

They are difficult to cross, as they are covered in dense vegetation and garrigue and indented by deep valleys.

Cultivated triploid clones (AAA such as Cavendish, AAB such as plantain varieties, and ABB cultivars) are difficult to cross because of sterility, polyploidy, high heterozygosity, interspecificity and low gamete fertility, thus limiting banana improvement [ 3].

Maybe it is difficult to cross this particular cultural barrier.

Hungary has built a fence along its border with Serbia, and part of a fence along its border with Croatia, although most of that border runs roughly along the Drava river, which is difficult to cross.

The report, by a research associate at the Brookings Institution, asserts that Soviet forces would find it difficult to conduct a full-scale invasion of Iran because some of the terrain is difficult to cross and the Iranian transportation system is limited and vulnerable to attack.

But Mr Clarke said that when it comes to Mr Baldwin, that line is difficult to cross.

However, it is difficult to cross energy barriers, and systems are often trapped in local minima with these methods.

Because resistance depends on several genes and it's difficult to cross the African and Asian varieties, no one has been able to introduce RYMV resistance through traditional breeding.

During the winter the snowy pass is difficult to cross, but in the summer you will find here a superb view of the natural monuments in the area.

"It's one thing to have a difference of opinion -- even to deeply disagree and have a divide that's difficult to cross," she said.

The rains flooded the Kaveri River, which was difficult to cross even under favorable conditions, and which separated the army from a British force under Robert Abercromby that was waiting on the far side of Seringapatam for Cornwallis's arrival.