At that time, it was remembered by remembering homophones and practicing frequently. The following is the method I compiled to remember homophones, hoping to help everyone.

1. Monovowel: [i:], [? ]、[? :]、[? 】、[u:]、[？ ]、[]、[? ]、[ɑ:]、[? 】、[e]、[？ ]

Second, diphthongs: [ei], [ai], [? i]、[]、[u？ 】, [me? 】、【au】、【？ u]

Third, consonants: [θ], [? ]、[? ]、[? ]