4 sentences

1. 这山太陡了，骑自行车可上不去。

   zhè shān tài dǒu le, qí zì​xíng​chē kě shàng bu qù.

   This hill is too steep to ride up on a bicycle.

   Source: UM-Corpus: Spoken

2. 这些是我曾见过的最陡的街道了。

   zhè​xiē shì wǒ céng jiàn guo de zuì dǒu de jiē​dào le.

   These are the steepest streets I've ever seen.

   Source: AI Challenger 2017

3. 小径很陡，但你尽可在一小时之内徒步游览完整个公园。

   xiǎo​jìng hěn dǒu, dàn nǐ jǐn kě zài yī xiǎo​shí zhī​nèi tú​bù yóu​lǎn wán zhěng​gè gōng​yuán.

   The trails are steep, but you can hike the entire park within an hour.

   Source: CCMatrix

4. 请注意，客人必须爬上陡峭的楼梯才能抵达电梯。

   qǐng zhù​yì, kè​ren bì​xū pá shàng dǒu​qiào de lóu​tī cái​néng dǐ​dá diàn​tī.

   Please note that guests must climb a steep staircase in order to reach the elevator.

   Source: CCMatrix