3 sentences

1. 龙虾的须非常长。

   lóng​xiā de xū fēi​cháng cháng.

   Lobsters have very long antennae.

   Source: Dong Chinese Dictionary

2. 这面旗子的边缘缀有红色的须。

   zhè miàn qí​zi de biān​yuán zhuì​yǒu hóng​sè de xū.

   The edge of this flag is trimmed with red tassels.

   Source: Dong Chinese Dictionary

3. 这位老人的长须一直垂到了胸前。

   zhè wèi lǎo​rén de cháng xū yī​zhí chuí dào le xiōng qián.

   The old man's long beard hung down to his chest.

   Source: Dong Chinese Dictionary