2 sentences

1. 这部文学巨著展现了作者深厚的文化积淀。

   zhè bù wén​xué jù​zhù zhǎn​xiàn le zuò​zhě shēn​hòu de wén​huà jī​diàn.

   This literary masterpiece demonstrates the author's profound cultural heritage.

   Source: Dong Chinese Dictionary

2. 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