2 sentences for 妖精 (yāo​jing — evil spirit)

1. 传说中，这个妖精在法力消失后会变回原形。

   chuán​shuō zhōng, zhè gè yāo​jing zài fǎ​lì xiāo​shī hòu huì biàn​huí yuán​xíng.

   Legend has it that this goblin will return to its original form once its magic disappears.

   Source: Dong Chinese Dictionary

2. 孙悟空一眼就看出了那个老太婆是妖精变的。

   Sūn Wù​kōng yī yǎn jiù kàn​chū le nà​gè lǎo​tài​pó shì yāo​jing biàn de.

   Sun Wukong instantly saw through the old woman's disguise as a demon.

   Source: Dong Chinese Dictionary