动物在春季开始繁殖后代。

dòngwù zài chūnjì kāishǐ fánzhí hòudài.

Animals begin to reproduce offspring in the spring.

这种植物容易繁殖。

zhè zhǒng zhíwù róngyì fánzhí.

This type of plant reproduces easily.

人类的繁殖依赖于生育能力。

rénlèi de fánzhí yīlài yú shēngyù nénglì.

Human reproduction depends on reproductive ability.