词汇	hold a ticket
释义	hold a ticket 持有票
随便看	spectrum economy spectrum effect spectrum effectiveness spectrum effects spectrum efficiency Spectrum-eigenvalue distribution spectrum emendation spectrum emission spectrum, emission spectrum emissivity spectrum encoding spectrum energies spectrum energy Spectrum enhancement spectrum entropy spectrum envelop spectrum envelope spectrum envelope of voice spectrum-envelope of voice spectrum-envelop of voice spectrum equalization spectrum estimate Spectrum estimating spectrum estimation Spectrum estimation precision