2 sentences for 重头戏 (zhòng​tóu​xì)

1. 晚宴后的抽奖环节是今晚的重头戏。

   wǎn​yàn hòu de chōu​jiǎng huán​jié shì jīn​wǎn de zhòng​tóu​xì.

   The lucky draw after the dinner is the highlight of tonight.

   Source: Dong Chinese Dictionary

2. 这位名角今晚将出演整场演出的重头戏。

   zhè wèi míng​jué jīn​wǎn jiāng chū​yǎn zhěng cháng yǎn​chū de zhòng​tóu​xì.

   The famous star will perform in the main act of the entire show tonight.

   Source: Dong Chinese Dictionary