来自 reproduce,复制，繁殖。

1. Genes are those tiny bits of biological information swapped in sexual reproduction.

基因是在有性繁殖中交换的微小生物信息。

2. We have been able to divorce sex from reproduction.

我们已经能够将性和生育完全分开了。

3. Use a black pen on white paper to ensure good reproduction.

用白纸黑笔，以确保复印清晰。

4. The craftsmen have ensured faithful reproduction of the original painting.

工匠保证要复制一幅最接近原作的画.

5. In human reproduction, one female egg is usually fertilized by one sperm.

在人体生殖过程中, 一个精子使一个卵子受精.