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后元音:[ɑ:][?][?:][u][u:]后元音发音要领:(1)舌尖不触下齿,舌身后缩,舌后部向软颚抬起,除[ɑ:]外,双唇要收圆。(2)发[ɑ:][?:][u:]时要注意长度,不要发得太短。[ɑ:]发音步骤:舌尖不触下齿,口张大,舌身平放后缩。
After the vowel: [ɑ:] [?] [?:] [U] [u:] Vowel pronunciation essentials: (1) tip of the tongue does not touch the teeth, tongue retraction, tongue back to the soft jaw lift, Except [ɑ:], lips should be closed. (2) hair [ɑ:] [?:] [U:] pay attention to the length, do not send too short. [ɑ:] Pronunciation steps: the tip of the tongue does not touch the teeth, mouth wide mouth, tongue flat back and forth.