| I | dull |
|---|---|
| you | dull |
| he/she/it | dulls |
| we | dull |
| you | dull |
| they | dull |
| I | dulled |
|---|---|
| you | dulled |
| he/she/it | dulled |
| we | dulled |
| you | dulled |
| they | dulled |
| I | have | dulled |
|---|---|---|
| you | have | dulled |
| he/she/it | has | dulled |
| we | have | dulled |
| you | have | dulled |
| they | have | dulled |
| I | had | dulled |
|---|---|---|
| you | had | dulled |
| he/she/it | had | dulled |
| we | had | dulled |
| you | had | dulled |
| they | had | dulled |
单语范例（未经PONS编辑处理）
They can be a reddish- or yellowish-brown to dull white, with darker brown splotches.
en.wikipedia.org They are often rather plump, dull or partly lustrous flies.
en.wikipedia.org The species tend towards dull grays and browns in their appearance.
en.wikipedia.org They feature a dull pale bar at the bottom of their remiges, although this is not very noticeable.
en.wikipedia.org The bill is dull gray with a slightly darker band at the tip.
en.wikipedia.org