3 sentences

1. 介不介意我给你提点专业性的建议？

   jiè bù jiè yì wǒ gěi nǐ tí diǎn zhuān​yè​xìng de jiàn​yì?

   Do you mind if I give you some professional advice?

   Source: OpenSubtitles

2. 虾和蟹在古代被称为介类。

   xiā hé xiè zài gǔ​dài bèi chēng​wéi jiè lèi.

   In ancient times, shrimp and crabs were referred to as 'shelled creatures'.

   Source: Dong Chinese Dictionary

3. 他的办公桌介于窗户和门之间。

   tā de bàn​gōng​zhuó jiè yú chuāng​hu hé mén zhī​jiān.

   His desk is between the window and the door.

   Source: Dong Chinese Dictionary