Your 10-month-old: Week 3
Your baby's ability to vocalize is improving, and he may say his first word any time now. When he does, repeat it softly and clearly so he can learn the correct pronunciation. (Bear in mind that many babies won't utter an intelligible peep for several more months, and that's normal, too.) First words don't always have precise definitions, by the way. "Dog" may mean anything with four legs, and "ba-ba" could signify bottle, teddy bear, bye-bye – or all three.
醋坛子妈妈看到这里笑了!