double; twice; times; fold
バイ(呉)、ベ(呉)、ハイ(漢)
そむ（く）、ま（す）
倍(ばい): (1) twice; double (2) times; -fold
倍率(ばいりつ): (1) magnification; leverage; amplification; scaling factor (2) acceptance rate; pass rate (of an exam, etc.)
Goo
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Jisho
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