reptile

I observe the reptiles.

私は爬虫類を観察します

I observe the reptiles with my younger brother.

私は弟と爬虫類を観察します

I observe the reptiles with my younger brother at the zoo.

私は弟と動物園で爬虫類を観察します

I observe the reptiles through the glass with my younger brother at the zoo.

私は弟と動物園で窓硝子越しに爬虫類を観察します

I observe the reptiles through the glass with my younger brother at the zoo while I record their movements.

私は弟と動物園で窓硝子越しに動きを記録しながら爬虫類を観察します