3 sentences

1. 这是他爷爷的遗愿。

   zhè shì tā yé​ye de yí​yuàn.

   It's his grandpa's dying wish.

   Source: OpenSubtitles

2. 完成这份遗愿是他未了的心愿。

   wán​chéng zhè fèn yí​yuàn shì tā wèi​liǎo de xīn​yuàn.

   Fulfilling this final wish was his unfulfilled desire.

   Source: Dong Chinese Dictionary

3. 他的遗愿是将遗产全部捐给慈善机构。

   tā de yí​yuàn shì jiāng yí​chǎn quán​bù juān​gěi cí​shàn jī​gòu.

   His dying wish was to donate his entire estate to charity.

   Source: Dong Chinese Dictionary