8 sentences

1. 我们要学会区分事实和传闻。

   wǒ​men yào xué​huì qū​fēn shì​shí hé chuán​wén.

   We must learn to distinguish between fact and rumor.

   Source: Dong Chinese Dictionary

2. 我们要学会辨别是非，区分善恶。

   wǒ​men yào xué​huì biàn​bié shì​fēi, qū​fēn shàn'è.

   We must learn to tell right from wrong and distinguish between good and evil.

   Source: Dong Chinese Dictionary

3. 我们要小心区分哪些菌是有毒的。

   wǒ​men yào xiǎo​xīn qū​fēn nǎ​xiē jūn shì yǒu​dú de.

   We must be careful to distinguish which mushrooms are poisonous.

   Source: Dong Chinese Dictionary

4. 在语法分析中，我们要学会区分主句和从句。

   zài yǔ​fǎ fēn​xī zhōng, wǒ​men yào xué​huì qū​fēn zhǔ​jù hé cóng​jù.

   In grammatical analysis, we must learn to distinguish between main clauses and subordinate clauses.

   Source: Dong Chinese Dictionary

5. 牧场主经常通过体型来区分羊群中的牡和牝。

   mù​chǎng​zhǔ jīng​cháng tōng​guò tǐ​xíng lái qū​fēn yáng​qún zhōng de mǔ hé pìn.

   Ranchers often distinguish between males and females in a flock of sheep by their body size.

   Source: Dong Chinese Dictionary

6. 在学习中国古代音韵学时，需要区分平、上、去、入。

   zài xué​xí Zhōng​guó gǔ​dài yīn​yùn​xué shí, xū​yào qū​fēn píng, shǎng, qù, rù.

   When studying ancient Chinese phonology, it is necessary to distinguish between the level, rising, departing, and entering tones.

   Source: Dong Chinese Dictionary

7. 在数学课上，我们学会了如何区分正数和负数。

   zài shù​xué kè shàng, wǒ​men xué​huì le rú​hé qū​fēn zhèng​shù hé fù​shù.

   In math class, we learned how to distinguish between positive and negative numbers.

   Source: Dong Chinese Dictionary

8. 这些书籍是按题材区分为不同类别的。

   zhè​xiē shū​jí shì àn tí​cái qū​fēn wéi bù​tóng lèi​bié de.

   These books are categorized into different classes based on their subject matter.

   Source: Dong Chinese Dictionary