The sand have silt up the mouth of the river.

泥沙已把河口堵住了。

youdao

The sand have silt up the mouth of the river.

沙和石头沉到了河底。

youdao

The mouth of the river was beginning to silt up-a powerful symbol of over-exploitation.

墨累-达令的河口开始被泥沙淤塞，这是过度开发的有力信号。

youdao

But by the time it was completed in 1598, the Guadalquivir River had begun to silt up, causing all New World trade to move to Cadiz and the building became a rather opulent filing cabinet instead.

BBC: Seville's threatened architectural heritage

Ian Barclay, a project manager on the silt scheme, said it would be good to add the extra barrier to stop the silt building up again so quickly.

BBC: St Aubin

Staffordshire county council said the divers went into a culvert underneath the road and found blockages created by debris and a build up of silt and mud.

BBC: Divers used to investigate flood-hit A34 in Stone