清辅音后读/s/ 浊辅音和元音后读 /z/
清辅音后读/s/map-maps
浊辅音和元音后读 /z/bag-bags /car-cars
有人能帮我理解一下.map 怎么看出它是有清辅音的,bag car怎么看出它是浊辅音和元音后读 /z/bag-bags /car-cars