Irrepressible, that's what you are
Now "irrepressible" is a great word, but it's not one you hear every day. And of course, even with their sluggish stock price etc., the boys from Redmond still have the money and force to "keep coming, and coming and coming. and coming..." - a scary thought, but there you have it.
On the subject of search engines, for example, Ballmer acknowledged that Microsoft was not the first and might not yet be the best, but it will not be counted out. "We just keep coming, and coming and coming and coming and coming and coming and coming; we are irrepressible on this," Ballmer said. "The bone doesn't fall out of our mouth easily."
But back to "irrepressible". My only association with the word is ads for old re-runs of Ozzie and Harriet in which Ricky Nelson was tagged "the irrepressible Ricky." Well, Rick Nelson turned out not to be all that "irrepressible," but I'm sure that MSFT will prove more so. Who knows? Maybe Google will buy them.
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