4 sentences

1. 两人因小事而生了隙。

   liǎng rén yīn xiǎo shì ér shēng le xì.

   The two of them had a falling out over a trivial matter.

   Source: Dong Chinese Dictionary

2. 阳光从门隙中射进来。

   yáng​guāng cóng mén xì zhōng shè jìn​lái.

   Sunlight shines through the crack in the door.

   Source: Dong Chinese Dictionary

3. 他利用工作之隙学习外语。

   tā lì​yòng gōng​zuò zhī xì xué​xí wài​yǔ.

   He uses spare moments at work to study foreign languages.

   Source: Dong Chinese Dictionary

4. 这套方案严丝合缝，无隙可寻。

   zhè tào fāng'àn yán​sī​hé​fèng, wú xì kě xún.

   This plan is seamless and leaves no room for criticism.

   Source: Dong Chinese Dictionary