4 year old with speach problems?

I have a 4 year old daughter who struggles to articulate her words. When we can't understand her she gets very frustrated. We don't and never have used baby talk with her. She has an older sister who never had this problem and we are not sure if it will change or if she needs speech therapy. Any advice... show more I have a 4 year old daughter who struggles to articulate her words. When we can't understand her she gets very frustrated. We don't and never have used baby talk with her. She has an older sister who never had this problem and we are not sure if it will change or if she needs speech therapy. Any advice or suggestions?
Update: Oops....I meant Speech
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