辅音字 ch 在单词中通常发[t]音(规则编号9-06）
achieve branch bench chain chair chalk challenge chamber chance chapel charge chart chase chat cheat check cherry chew chick chief choice clench coach each exchange lunch merchant much peach porch preach rich screech search speech starch such teach touch trench which	achieve branch bench chain chair chalk challenge chamber chance chapel charge chart chase chat cheat check cherry chew chick chief choice clench coach each exchange lunch merchant much peach porch preach rich screech search speech starch such teach touch trench which