4 sentences

1. 我们已经不是小学生了。

   wǒ​men yǐ​jīng bù shì xiǎo​xué​shēng le.

   We're not in elementary school anymore.

   Source: OpenSubtitles

2. 这篇课文写得很白，小学生都能读懂。

   zhè piān kè​wén xiě de hěn bái, xiǎo​xué​shēng dōu néng dú​dǒng.

   This text is written in very plain language; even elementary school students can understand it.

   Source: Dong Chinese Dictionary

3. 这名小学生每天背着书包走路上学。

   zhè míng xiǎo​xué​shēng měi tiān bēi zhe shū​bāo zǒu​lù shàng​xué.

   This elementary school student walks to school with a backpack every day.

   Source: Dong Chinese Dictionary

4. 在量子物理学方面，我只是个小学生。

   zài liàng​zǐ wù​lǐ​xué fāng​miàn, wǒ zhǐ​shì gè xiǎo​xué​shēng.

   In the field of quantum physics, I am just a novice.

   Source: Dong Chinese Dictionary