ph:photo _______________________________
wh:what _________________________________
ch:teach ___________________________________
ph:photo _______________________________
wh:what _________________________________
ch:teach ___________________________________
You can search those information of electronic dictionary.
PH: photograph, photocopier,photodiode,photoelectron.PH基本都是发一样的音的
WH:what, why, where, which,whatever, whale,when, white, while, whenever,whistle...
CH: teach, teacher, peach,bench,reach, search, research, speech...