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,bagcar怎么看出它是浊辅音和元音后读/z/bag-bags/car-cars