7 sentences

1. 很难辨别真伪。

   hěn nán biàn​bié zhēn​wěi.

   It is difficult to distinguish truth from falsehood.

   Source: Dong Chinese Dictionary

2. 这件古玩的真伪，请行家一鉴便知。

   zhè jiàn gǔ​wán de zhēn​wěi, qǐng háng​jiā yī jiàn biàn zhī.

   An expert can tell the authenticity of this antique at a glance.

   Source: Dong Chinese Dictionary

3. 银行正在核对这些商业票据的真伪。

   yín​háng zhèng​zài hé​duì zhè​xiē shāng​yè piào​jù de zhēn​wěi.

   The bank is checking the authenticity of these commercial instruments.

   Source: Dong Chinese Dictionary

4. 海关人员正在核查这批进口货物的真伪。

   hǎi​guān rén​yuán zhèng​zài hé​chá zhè pī jìn​kǒu huò​wù de zhēn​wěi.

   Customs officers are checking the authenticity of this batch of imported goods.

   Source: Dong Chinese Dictionary

5. 学者对这件文物的真伪进行了仔细辩证。

   xué​zhě duì zhè jiàn wén​wù de zhēn​wěi jìn​xíng le zǐ​xì biàn​zhèng.

   Scholars carefully authenticated the genuineness of this artifact.

   Source: Dong Chinese Dictionary

6. 他有很强的辨析力，能迅速甄别事情的真伪。

   tā yǒu hěn qiáng de biàn​xī lì, néng xùn​sù zhēn bié shì​qing de zhēn​wěi.

   He has a strong analytical ability and can quickly distinguish truth from falsehood.

   Source: Dong Chinese Dictionary

7. 为了避免买到赝品，专家建议大家多学习如何鉴别书画真伪。

   wèi​le bì​miǎn mǎi​dào yàn​pǐn, zhuān​jiā jiàn​yì dà​jiā duō xué​xí rú​hé jiàn​bié shū​huà zhēn​wěi.

   To avoid buying fakes, experts suggest that everyone learn more about how to authenticate calligraphy and paintings.

   Source: Dong Chinese Dictionary