1.Monomotor bogies , where both axles of the bogie are driven by a single motor , often encounter torsional resonances, which lead to periodic longitudinal slip.
5.“Ooh, you look much tastier than Crabbe and Goyle, Harry, ” said Hermione, before catching sight of Ron's raised eyebrows, blushing slightly, and saying, “Oh, you know what I mean—Goyle's potion looked like bogies.”
6.A quiet, silent, rich, happy place; a narrow crack cut deep into the earth; so deep, and so out of the way, that the bad bogies can hardly find it out.