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The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.
这个分子包含四个呈环状排列的碳原子,每两个碳原子之间形成一个三
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prim
prima
prima ballerina
primacy
prima donna
prima facie
prima facie case
prima facie evidence
Primakov
primal
prim and proper
primaries
primarily
Primary
primary
primary care
primary cause
primary coil
primary colours
primary education
primary election
primary energy
primary filter
primary focus
primary function
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