Sentence examples for a key problem is that from inspiring English sources

But a key problem is that species need to be preserved for reasons other than any known value as resources for human use (Sober 1986).

A key problem is that local governments frequently build budgets upon inaccurate revenue forecasting, he said.

A key problem is that the optimal input depends on system parameters to be identified.

A key problem is that laws established at the level of observation and experiment involve or imply properties other than the primary ones of the mechanical atomist.

"A key problem is that the department has been unable to create a competitive market for medical assessment providers, leaving Atos in the position of being a near monopoly supplier," she said.

And, as Oliver pointed out, a key problem is that, the New York arrests aside, often these practices remain legal.

The key problem is that BT hasn't put the money into it because it hasn't been forced to.

Ramos thinks that the key problem is that observers feel isolated and disempowered by the European Commission and the national authorities, and should get better backup from inspectors.

The reality, however, is that many hurdles still have to be overcome first.One key problem is that of connecting the implant, which is inserted into the eye, with the patient's nervous system.

The purpOne of this letter isn't to send everyone off in a  panic.

The key problem is that information obtained from the information service may be outdated by the time the scheduler needs it to schedule tasks.