Sukha is good fortune, happiness, pleasure. Some scholars opine that the Buddha did not need to address sukha in his teaching because it was not seen as a problem. Sukha was desirable and dukkha was not. There would not have been a great point in discussing something good happening. The second rendering above, dukkha as dissatisfaction, may come closer to the intent of the original statement.
Life is flawed, so there.
It doesn't mean we will never have enjoyable moments, only that we will not only have them. Expressed in a slightly different way, one could arrive at the conclusion that everything in the world, no matter how wonderful it may seem, is ultimately unsatisfying. This may be the best translation of them all. Of course, the fact that we cannot be ultimately and finally satisfied means all things are touched with dukkha, and we suffer because of this. Beyond this basic conclusion, the Buddha further suggested that there are three kinds of dukkha .