6 sentences

1. 泥沙被不断上涨的河水淘走了。

   ní​shā bèi bù​duàn shàng​zhǎng de hé​shuǐ táo zǒu le.

   The silt was washed away by the rising river waters.

   Source: Dong Chinese Dictionary

2. 等泥沙澄清以后再把水倒出来。

   děng ní​shā dèng​qīng yǐ​hòu zài bǎ shuǐ dào chu​lai.

   Wait until the sediment has settled before pouring the water out.

   Source: Dong Chinese Dictionary

3. 这里的地貌是由于长期的泥沙沉积形成的。

   zhè​lǐ de dì​mào shì yóu​yú cháng​qī de ní​shā chén​jī xíng​chéng de.

   The local landscape was formed by long-term sediment deposition.

   Source: Dong Chinese Dictionary

4. 由于泥沙淤积，这条航道已经变得非常狭窄。

   yóu​yú ní​shā yū​jī, zhè tiáo háng​dào yǐ​jīng biàn de fēi​cháng xiá​zhǎi.

   The channel has become very narrow due to siltation.

   Source: Dong Chinese Dictionary

5. 由于河里的泥沙非常多，一眼望去水面全是黄色的。

   yóu​yú hé lǐ de ní​shā fēi​cháng duō, yī yǎn wàng qù shuǐ​miàn quán shì huáng​sè de.

   Due to the large amount of silt in the river, the water looks completely yellow as far as the eye can see.

   Source: Dong Chinese Dictionary

6. 河床上的泥沙经过长年累月的积淀，形成了新的小岛。

   hé​chuáng shàng de ní​shā jīng​guò cháng​nián​lěi​yuè de jī​diàn, xíng​chéng le xīn de xiǎo dǎo.

   The silt on the riverbed accumulated over the years to form a new island.

   Source: Dong Chinese Dictionary