Sentence Composition
| 1 | 该 | gāi |
|
| 2 | 信件 | xìnjiàn | letter (sent by mail) |
| 3 | 未 | wèi |
|
| 4 | 署名 | shǔmíng | to sign (a signature) |
| 1 | 该 | gāi |
|
| 2 | 信件 | xìnjiàn | letter (sent by mail) |
| 3 | 未 | wèi |
|
| 4 | 署名 | shǔmíng | to sign (a signature) |