/θ/：舌尖轻咬上下齿间，送气轻音，声带不震动。
/ð/：舌尖轻咬上下齿间，不送气，声带震动。
1. Thank you very very much. — 非常非常感谢你。
2. Three three little pink pigs. — 三只小小的粉色猪。
3. I think you are very right. — 我认为你非常正确。
4. I throw the small soft ball. — 我扔出这个小小的软球。
5. My tooth is clean white. — 我的牙齿干净洁白。
6. This is my good new friend. — 这是我的新好朋友。
7. That is a big black dog. — 那是一只大黑狗。
8. They are a happy big family. — 他们是一个快乐大家庭。
9. There is a big tall tree. — 那里有一棵高大的树。
10. These are my nice red pens. — 这些是我的好看红笔。
11. Those are my small old bags. — 那些是我的旧小包。
12. The weather is warm nice. — 天气温暖又舒适。
13. I think math is very fun. — 我认为数学非常有趣。
14. I thin my small nice soup. — 我把好喝的汤调稀。
15. I thirst for clean cool water. — 我渴望喝干净的凉水。
16. They walk there every day. — 他们每天走路去那里。
17. Their room is clean tidy. — 他们的房间干净整洁。
18. This that these those four words. — 这四个单词。
19. I think thus you are right. — 我因此认为你是对的。
20. They breathe fresh clean air. — 他们呼吸新鲜干净的空气。