However, let's look at another situation. You have pocket 9s. The flop comes A K 4. This is a horrible flop for a continuation bet. Here it's important to think about what your opponent could have called a preflop raise with. Ace is a big one... especially at the low limits I play at... people love holding on to Aces under all kinds of conditions. I've seen people play aces all the way to the river even though they are clearly a huge underdog.
I'm not saying you should completely fear the Ace on the flop... often times you can use it to your advantage by giving the impression that you hit, but you have to be careful... the flop here represents two danger cards... the A and the K. It's very likely that someone left in the pot was holding one of those.
https://worldhealthreviews.com/pro-race-consultants-review/