5 sentences

1. 你桌上为何会有马铃薯？

   nǐ zhuō shàng wèi​hé huì yǒu mǎ​líng​shǔ?

   Why do you have potatoes on your table?

   Source: OpenSubtitles

2. 马铃薯俗称土豆。

   mǎ​líng​shǔ sú​chēng tǔ​dòu.

   Potatoes are commonly called 'tudou'.

   Source: Dong Chinese Dictionary

3. 她正在厨房里帮妈妈削马铃薯皮。

   tā zhèng​zài chú​fáng lǐ bāng mā​ma xiāo mǎ​líng​shǔ pí.

   She is in the kitchen helping her mother peel potatoes.

   Source: Dong Chinese Dictionary

4. 马铃薯在法国是蔬菜，在荷兰则不是。

   mǎ​líng​shǔ zài Fǎ​guó shì shū​cài, zài Hé​lán zé bù shì.

   In France, potatoes are vegetables, while in the Netherlands, they are not.

   Source: Tatoeba

5. 大家都知道，马铃薯其实就是我们平时说的土豆的别名。

   dà​jiā dōu zhī​dào, mǎ​líng​shǔ qí​shí jiù shì wǒ​men píng​shí shuō de tǔ​dòu de bié​míng.

   Everyone knows that 'maling-shu' is actually an alias for what we usually call 'tudou' (potatoes).

   Source: Dong Chinese Dictionary