单词	burletta
释义	burletta noun bur·​let·​ta bu̇rˈletə, ˌbər- plural -s : a usually entirely musical comic opera popular in England in the latter half of the 18th century Word History Etymology Italian, diminutive of burla joke
随便看	rade raden Radetzky radi- radiac radial radial arm radial bearing radial brick radial canal radial cleavage radial drill radial engine radial gate radial head radial ker radial keratotomy radial motion radial quantum number radial saw radial sector radial shield radial symmetry radial velocity radial-flow

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