单词	orthopter
释义	orthopter /ɔːˈθɒptə / noun Another term for ornithopter.Entrants in the 1907 race included the Orthopter of George Francis Meyers, Columbus, Ohio.
随便看	on the money on the move on the nail on the nod on the nose on the (off) chance on the one (or the other) hand on the order of on the (or its) way on the (or one's) way on the (or one's) way out on the other hand on the outer on the outside on the outside looking in on the part of (or on my, their, etc., part) on the phone on the pig's back on the plus side on the port (or starboard) tack on the prod on the prowl on the quiet on the rack on the rails

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