3 sentences

1. 沼泽地很危险，一落脚就可能陷下去。

   zhǎo​zé​dì hěn wēi​xiǎn, yī luò​jiǎo jiù kě​néng xiàn xià​qù.

   The marshland is dangerous; you might sink in the moment you set foot there.

   Source: Dong Chinese Dictionary

2. 他在这个城市还没找到落脚的地方。

   tā zài zhè gè chéng​shì hái méi zhǎo​dào luò​jiǎo de dì​fang.

   He hasn't found a place to stay in this city yet.

   Source: Dong Chinese Dictionary

3. 木工把锯下来的落脚都堆在墙角当柴烧。

   mù​gōng bǎ jù xià​lai de luò​jiǎo dōu duī zài qiáng​jiǎo dàng chái shāo.

   The carpenter piled up the wood offcuts in the corner to use as firewood.

   Source: Dong Chinese Dictionary