他的眼睛特别像妈妈，可能是遗传的。

Tā de yǎnjīng tèbié xiàng māma, kěnéng shì yíchuán de.

His eyes look especially like his mother's; it might be hereditary.

除了遗传，我们的生活环境也会影响身体健康。

Chúle yíchuán, wǒmen de shēnghuó huánjìng yě huì yǐngxiǎng shēntǐ jiànkāng.

Besides heredity, our living environment also affects our health.

有些疾病是通过基因遗传的，需要提前检查。

Yǒuxiē jíbìng shì tōngguò jīyīn yíchuán de, xūyào tíqián jiǎnchá.

Some diseases are passed on through genes and need to be checked in advance.