Ildebrando D'Arcangelo, singing Masetto in his Met debut, proved serviceable but unmemorable.

But there are other persistent winds that, for purposes of exploration, would prove equally serviceable and sure.

In these cases, not invitation but command has usually proved serviceable.

Baird used the Farnsworth tubes instead to scan cinefilm, in which capacity they proved serviceable though prone to dropouts and other problems.

"That, indeed, might have been useful," said Jack, examining it, "if we had any powder; but I suspect the bow and the sling will prove more serviceable."

Not satisfied, Marius continued to search until he found a large pair, and these proved more than serviceable.

The cars proved serviceable and continued onward in service from that point.

He reasoned that since The Shadow has turned to crime, we might as well allow him to prove serviceable to us.

But some of their lessons have proven most serviceable.

This combination proved serviceable for most average picture taking-even downright good given ample lighting-but definitely suffered in low light, close focus, and tricky lighting scenarios.