silt up
silt up — phrasal verb
- silt upbase form
- silts up3rd person singular
- silting up-ing form
- silted uppast simple
1. to become blocked, or to block something, because fine sand and mud collect ther
to become blocked, or to block something, because fine sand and mud collect there over time
After the spring floods, mud and sand silted up the narrow canal.
transitive: material silts up a waterway
Without regular dredging, the fishing harbour quickly silted up each winter.
intransitive: a harbour becomes blocked over time
Leaves and soil from the hill silted up the village drain overnight.
The river mouth has silted up, so small boats cannot enter.
Years of muddy water slowly silted up the lake beside the farms.
- dredge
to remove mud or sand so water can pass again
文法句型
something silts up
silt up + canal/harbour/drain/river mouth
用法筆記
Intransitive use focuses on the channel or drain becoming blocked. Transitive use names the sand, mud, or runoff that causes the blockage.