How to read: j
This is an unaspirated voiceless palatal affricate. This sound is pronounced by first putting the tip of the tongue against the lower teeth and blocking the air with its front part against the hard palate, and the dropping to release the air. The vocal cords do not vibrate. It is similar to ‘j’ in the English ‘jeep’ – tongue is positioned below lower teeth.
介绍jiè shào：to introduce