7 sentences

1. 我知道界限在哪里。

   wǒ zhī​dào jiè​xiàn zài nǎ​lǐ.

   I know where the line is.

   Source: OpenSubtitles

2. 我们得划清界限。

   wǒ​men děi huà​qīng jiè​xiàn.

   We need to make clear boundaries.

   Source: OpenSubtitles

3. 这两个概念的界限十分分明。

   zhè liǎng gè gài​niàn de jiè​xiàn shí​fēn fēn​míng.

   The boundary between these two concepts is very distinct.

   Source: Dong Chinese Dictionary

4. 这两个概念之间没有明显的界限。

   zhè liǎng gè gài​niàn zhī​jiān méi​yǒu míng​xiǎn de jiè​xiàn.

   There is no clear boundary between these two concepts.

   Source: Dong Chinese Dictionary

5. 我们要同这些错误思想划清界限。

   wǒ​men yào tóng zhè​xiē cuò​wù sī​xiǎng huà​qīng jiè​xiàn.

   We must draw a clear line between ourselves and these erroneous ideas.

   Source: Dong Chinese Dictionary

6. 提高对比度能使图像的黑白界限更加分明。

   tí​gāo duì​bǐ​dù néng shǐ tú​xiàng de hēi​bái jiè​xiàn gèng​jiā fēn​míng.

   Increasing the contrast makes the boundaries between black and white in the image clearer.

   Source: Dong Chinese Dictionary

7. 他们两个人的关系十分暧昧，超出了普通朋友的界限。

   tā​men liǎng gè rén de guān​xi shí​fēn ài​mèi, chāo​chū le pǔ​tōng péng​you de jiè​xiàn.

   The relationship between the two of them is very ambiguous, exceeding the bounds of normal friendship.

   Source: Dong Chinese Dictionary