2 sentences

1. 在这种极端天气下独自进山简直是寻死。

   zài zhè zhǒng jí​duān tiān​qì xià dú​zì jìn​shān jiǎn​zhí shì xún​sǐ.

   Going into the mountains alone in this extreme weather is practically suicidal.

   Source: Dong Chinese Dictionary

2. 这里的地形重叠交错，进山后很容易迷路。

   zhè​lǐ de dì​xíng chóng​dié jiāo cuò, jìn​shān hòu hěn róng​yì mí​lù.

   The terrain here is overlapping and crisscrossed; it's easy to get lost after entering the mountains.

   Source: Dong Chinese Dictionary