6 sentences

1. 比赛原定于5点开始。

   bǐ​sài yuán​dìng yú5 diǎn kāi​shǐ.

   The match was scheduled to begin at 5:00.

   Source: OpenSubtitles

2. 比赛将按照原定计划进行。

   bǐ​sài jiāng àn​zhào yuán​dìng jì​huà jìn​xíng.

   The tournament will proceed as planned.

   Source: OpenSubtitles

3. 会议原定在三点开始，但被推迟了。

   huì​yì yuán​dìng zài sān diǎn kāi​shǐ, dàn bèi tuī​chí le.

   The meeting was originally scheduled to start at three, but it was postponed.

   Source: Dong Chinese Dictionary

4. 他决定遂行原定的计划，不再做任何修改。

   tā jué​dìng suì xíng yuán​dìng de jì​huà, bù zài zuò rèn​hé xiū​gǎi.

   He decided to carry out the original plan without making any more changes.

   Source: Dong Chinese Dictionary

5. 由于情况发生了变化，我们不得不变更原定的计划。

   yóu​yú qíng​kuàng fā​shēng le biàn​huà, wǒ​men bù​dé​bù biàn​gēng yuán​dìng de jì​huà.

   Due to a change in circumstances, we have to modify our original plan.

   Source: Dong Chinese Dictionary

6. 由于原定的计划被打乱，他的脸上露出了不豫之色。

   yóu​yú yuán​dìng de jì​huà bèi dǎ​luàn, tā de liǎn shàng lù​chū le bù yù zhī sè.

   Because the original plan was disrupted, a look of displeasure appeared on his face.

   Source: Dong Chinese Dictionary