J9s 陳唐山前 $25NL - 撲克牌

更正一下 $50NL

SB ($59.60)
BB ($76.25)
UTG ($48)
Hero ($22.20)
CO ($19.55)
Button ($99.65)

Preflop: Hero is MP with 9s, Js.
1 fold, Hero calls $0.50, CO calls $0.50, 1 fold, SB raises to $2.5, 1 fold,
Hero calls $2, CO calls $2.

Flop: ($8) 7s, 8s, 5d (3 players)
SB bets $4.5, Hero ???.

哪裡有錯?
對手怎樣的人?
flop bet代表什麼?

--