Sentence Composition
| 1 | 他 | tā |
| 2 | 研究 | yánjiū |
classifier: 項 |
| =3 | 了 | le |
|
| =3 | 了 | liǎo |
| =3 | 了 | liǎo |
|
| =3 | 了 | liào | unofficial variant of 瞭 liào |
| 4 | 十年 | shínián | ten years; decade |
| 1 | 他 | tā |
| 2 | 研究 | yánjiū |
classifier: 項 |
| =3 | 了 | le |
|
| =3 | 了 | liǎo |
| =3 | 了 | liǎo |
|
| =3 | 了 | liào | unofficial variant of 瞭 liào |
| 4 | 十年 | shínián | ten years; decade |