2 sentences for 主 (zhǔ — signify)

1. 此占主凶，不宜出门。

   cǐ zhān zhǔ xiōng, bù yí chū​mén.

   This divination forebodes misfortune; it is not a good day to go out.

   Source: Dong Chinese Dictionary

2. 老师在语法课上讲解了主、谓、宾的结构。

   lǎo​shī zài yǔ​fǎ​kè shàng jiǎng​jiě le zhǔ, wèi, bīn de jié​gòu.

   The teacher explained the subject-verb-object structure in the grammar class.

   Source: Dong Chinese Dictionary