1. Insert the speaker plug into the microphone jack, then lay down semi-recumbently on the back, and it would be better to sit in the sofa or chaise longue.
   2将扬声器插头插到胎教仪插孔中，取半卧位姿势，最好坐在沙发或躺椅上。
2. 2将扬声器插头插到胎教仪插孔中，取半卧位姿势，最好坐在沙发或躺椅上。
   Insert the speaker plug into the microphone jack, then lay down semi-recumbently on the back, and it would be better to sit in the sofa or chaise longue.

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