我和姐姐常常一起看电影。

Wǒ hé jiějie chángcháng yìqǐ kàn diànyǐng.

My older sister and I often watch movies together.

姐姐在医院工作，是医生。

Jiějie zài yīyuàn gōngzuò, shì yīshēng.

My older sister works in a hospital; she is a doctor.

我姐比我大三岁。

Wǒ jiě bǐ wǒ dà sān suì.

My older sister is three years older than me.