Sentence Composition
| 1 | 天空 | tiānkōng | sky |
| 2 | 突然 | tūrán | sudden; abrupt; unexpected |
| 3 | 變得 | biànde | to become |
| 4 | 烏雲 | wūyún | black cloud |
| =5 | 密 | Mì |
|
| =5 | 密 | mì |
|
| 6 | 佈 | bù |
|
| 1 | 天空 | tiānkōng | sky |
| 2 | 突然 | tūrán | sudden; abrupt; unexpected |
| 3 | 變得 | biànde | to become |
| 4 | 烏雲 | wūyún | black cloud |
| =5 | 密 | Mì |
|
| =5 | 密 | mì |
|
| 6 | 佈 | bù |
|