6 sentences

1. 云贵高原的地势起伏很大。

   Yún Guì gāo​yuán de dì​shì qǐ​fú hěn dà.

   The terrain of the Yunnan-Guizhou Plateau fluctuates greatly.

   Source: Dong Chinese Dictionary

2. 此处的地势如乙字般弯曲。

   cǐ chù de dì​shì rú yǐ zì bān wān​qū.

   The terrain here curves like the character 'Yi'.

   Source: Dong Chinese Dictionary

3. 此处地势险要，是连接两省的咽喉要道。

   cǐ​chù dì​shì xiǎn​yào, shì lián​jiē liǎng shěng de yān hóu yào​dào.

   The terrain here is strategic, serving as a vital passage connecting the two provinces.

   Source: Dong Chinese Dictionary

4. 这里的地势异常险恶，行车需格外小心。

   zhè​lǐ de dì​shì yì​cháng xiǎn'è, xíng​chē xū gé​wài xiǎo​xīn.

   The terrain here is exceptionally treacherous; driving requires extra caution.

   Source: Dong Chinese Dictionary

5. 那个边远小城地势粗僻，很少有游客前往。

   nà​gè biān​yuǎn xiǎo chéng dì​shì cū pì, hěn shǎo yǒu yóu​kè qián​wǎng.

   That remote small town is rugged and secluded, so few tourists visit it.

   Source: Dong Chinese Dictionary

6. 由于地势的影响，河道里的水开始向高处倒流。

   yóu​yú dì​shì de yǐng​xiǎng, hé​dào lǐ de shuǐ kāi​shǐ xiàng gāo​chù dào​liú.

   Due to the terrain, the water in the riverbed began to flow backward upstream.

   Source: Dong Chinese Dictionary