美国英语音标外教发音详解遥：清辅音t和浊辅音d发音清辅音t和浊辅音d清辅音t示例单词
pat
浊辅音d示范单词
dad句子示范：I bet you did发音区分madder和matter
madder
I'm madder than I have even beenmatter:
Wwhat's the matterdime, drain, do,发音区分第二组time和dime
tad和dad
tote和dotet和d的发音练习句：
Tom tasted dad's dark chocolate treats