It is typically a doubleton somewhere.
通常在某个地方是有个双张。
South rebid two spades, a so-called superaccept promising four-card heart support, a maximum and, typically, a doubleton somewhere.
南家再叫2S，这是所谓的超转移，承诺有四张红心支持，高限牌力，通常是有个双张。
South rebid two spades, a so-called superaccept promising four-card heart support, a maximum and, typically, a doubleton somewhere.
南家再叫2S，这是所谓的超转移，承诺有四张红心支持，高限牌力，通常是有个双张。
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