recumbently

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。

2.2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。

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.