介绍:
302 Constantly talking isn’t necessarily communicating.
语音讲解：
1. constantly重读在前
2. talking后鼻音ing
3. isn’t的t不要重读
4. necessarily重读在sa
词汇讲解：
1. constantly，不断地。Constant/distant/instant辨析
2. necessarily. necessary.同义词替换essential.
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