繁殖

tā men měi nián fán zhí yī cì

它们每年繁殖一次。

They breed once yearly.

shēng chù fán zhí le hěn duō

牲畜繁殖了很多。

Livestock populations have risen significantly.

wén zi zài sǐ shuǐ táng zhōng fán zhí

蚊子在死水塘中繁殖。

Mosquitoes breed in stagnant pools of water.

jìn qīn fán zhí

近亲繁殖

close breeding

tóng zhǒng fán zhí

同种繁殖

breed in and in