2 sentences

1. 他摔了一跤，屁股着地。

   tā shuāi le yī jiāo, pì​gu zháo​dì.

   He fell down and landed on his butt.

   Source: Dong Chinese Dictionary

2. 跳伞员在预定地点安全着地。

   tiào​sǎn yuán zài yù​dìng dì​diǎn ān​quán zháo​dì.

   The skydiver landed safely at the designated spot.

   Source: Dong Chinese Dictionary