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历史:
CET-4 CET-6 考研 TOEFL BNC: 1671 COCA: 3843
SUMSUMabbr.1.Surface-to-Underwater Missile 舰[地面]对水下导弹
sumsumD.J.:[sʌm]K.K.:[sʌm]n.1.总数, 总和The expenses came to an enormous sum.开支总数巨大。2.金额The sum will be increased by fifteen per cent.金额将要增加15%。3.算术She is better at sums than I am.她的算术比我好。vt. & vi.1.合计2.总结, 归纳Contributions summed into several thousand dollars.捐款总数达数千美元。

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