3 sentences

1. 他定于周六返回日本。

   tā dìng​yú zhōu​liù fǎn​huí rì​běn.

   He is scheduled to return to Japan on Saturday.

   Source: CCMatrix

2. 他定于周二在芝加哥出庭。

   tā dìng​yú zhōu'èr zài zhī​jiā​gē chū tíng.

   He's scheduled to appear in court on Tuesday in Chicago.

   Source: CCMatrix

3. 两款手机均定于8月中旬开卖。

   liǎng kuǎn shǒu​jī jūn dìng​yú8 yuè zhōng​xún kāi mài.

   Both phones will go on sale in mid-August.

   Source: CCMatrix