Sentence Composition
| 1 | 我 | wǒ |
|
| =2 | 兒子 | érzi | son |
| =2 | 兒子 | érzǐ |
|
| 3 | 正在 | zhèngzài | to be in the process of (doing sth); to be currently ...-ing |
| 4 | 鍛鍊 | duànliàn |
|
| 5 | 上廁所 | shàngcèsuǒ | to go to the bathroom |