Sentence examples for main problem are from inspiring English sources

Most of the schemes for the main problem are partially numerical and therefore apply only to the lunar motion.

Moreover, goat husbandry as it is now practiced is unsustainable; its low economic returns, as the main problem, are leading to its demise ([Hoyos and Salinas 1994];[Hernández et al. 2001]).

The main problem is noise.

"Their main problem is land.

"The main problem is impunity," he said.

The main problem is the label "left".

His main problem was his temper.

But the main problem is regulation.

Bhutan's main problem is height.

But the Republicans' main problem is taxes.

The main problem is loopy incentives.