g******a 发帖数: 667 | | f*****x 发帖数: 545 | 2 In std, it shows strong hand with good diamond, or good diamond with good club
fit.
Modern style is to play 2D as some kind of flannery, showing 5s4h, weak or
invitational hand.
My suggestion is dont make this kind call without discussion. There is no
default agreement for it.
【在 g******a 的大作中提到】 : 2/1体系里面 1C-2D大家都是什么意思啊?
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