单词	ovals of Cassini
释义	ovals of Cassini ovals of Cas·​si·​ni -kəˈsēnē, -ka-, -kȧ- : a curve that is the locus of points of the vertex of a triangle whose opposite side is fixed and the product of whose adjacent sides is a constant and that has the equation [(x + a)2 + y2] [(x − a)2 + y2] − k4 = 0 where k is the constant and a is one half the length of the fixed side Word History Etymology after G.D. Cassini †1712 French astronomer First Known Use 1837, in the meaning defined above
随便看	comes along comes around comes at comes away from comes back comes between comes by comes clean comes clean (about) comes clean about comes down comes down (with) comes down hard comes down hard (on) comes down hard on comes down on comes down to comes down with comes forward comes from comes in comes in on comes into one's own comes off comes off (as)

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