Sentence:  If the second player does raise three <WSD>chips</WSD>, and all the other players drop, the player who opened may stay in by putting three more <WSD>chips</WSD> in the pot, for then he will have put in precisely as many <WSD>chips</WSD> as the second player. 
Meaning of the word marked with <WSD> tags:  A token used in place of cash.