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发音<br>舌尖在上下齿之间<br>气流由舌齿间发出<br>声带不震动<br><br>单词<br>thanks theme theory <br>thick thing think <br>thirst thirty threat<br>three threw throw <br>bath birth both <br>breath earth health <br>month mouth south <br>truth wealth worth <br>anything everything something<br>author ethnic method<br><br>句子<br>Take a bath.<br>Health is wealth.<br>I think he is three.<br>Everything is worthy.<br>Happy 10th birthday!<br><br>同音<br>[θ]<br>fourth forth<br>threw through<br>throne thrown<br><br>辨音<br>[θ] [s] <br>thin sin<br>bath bass <br>path pass<br>thank sank<br>thing sing<br>think sink<br>thumb sum