3 sentences

1. 图片仅供参考，请以实物为准。

   tú​piàn jǐn gōng cān​kǎo, qǐng yǐ shí​wù wéi​zhǔn.

   Pictures are for reference only; please refer to the actual product.

   Source: Dong Chinese Dictionary

2. 这件事我早有耳闻，但没见过实物。

   zhè jiàn shì wǒ zǎo yǒu ěr​wén, dàn méi jiàn guo shí​wù.

   I have heard about this for a long time, but I have never seen the actual thing.

   Source: Dong Chinese Dictionary

3. 在物理实验课上，老师带领我们观察实物并测量其质量。

   zài wù​lǐ shí​yàn kè shàng, lǎo​shī dài​lǐng wǒ​men guān​chá shí​wù bìng cè​liáng qí zhì​liàng.

   In physics lab, the teacher guided us in observing physical objects and measuring their mass.

   Source: Dong Chinese Dictionary