Alice, a 5-year-old Mandarin speaker learning English, faces challenges with her English speech, which teachers find difficult to understand. A speech test revealed articulation and phonology errors, primarily linked to her native language background. Through targeted therapy, she successfully corrected one specific sound error. Phonotactic analysis indicates that some English sounds are absent in Mandarin, clarifying her speech difficulties. Overall, her speech development is consistent with her linguistic background and is not a major concern for her parents.