thin,think,thank,month,mouth,tooth,though,太多了.实际上th有两种发音,thirsty里的发的是清辅音,还有一种就是this,that这种浊辅音.发音方式都一样,把舌头放在齿间摩擦发音,只不过清辅音不振动声带,浊辅音振动声带.