what a hero call

Poker Stars $0.25/$0.50 Pot Limit Omaha Hi - 6 players - View hand 2469753
DeucesCracked Poker Videos Hand History Converter

Hero (BTN): $54.91
Chicharitoe (SB): $143.31
scarboe8 (BB): $47.72
Romanov88 (UTG): $75.47
btot (MP): $47.55
yoni111110 (CO): $47.75

Pre Flop: ($0.75) Hero is BTN with J 5 9 Q
3 folds, Hero raises to $1.50, 1 fold, scarboe8 raises to $4.75, Hero calls $3.25

Flop: ($9.75) T T 8 (2 players)
scarboe8 bets $4.50, Hero raises to $22.81, scarboe8 calls $18.31

Turn: ($55.37) Q (2 players)
scarboe8 checks, Hero bets $27.35 all in, scarboe8 calls $20.16 all in

River: ($95.69) K (2 players - 2 are all in)

Final Pot: $95.69
Hero shows J 5 9 Q (a straight, Nine to King)
scarboe8 shows A K 9 3 (two pair, Kings and Tens)
Hero wins $93.19
(Rake: $2.50)

不能理解啊，呵呵

有人知道對手如何跟入這個翻後的加注嗎？