| 释义 |
A single sperm fertilizes an egg.一个精子能使卵子受孕。The sperm fertilizes the egg.精子使卵子受精。Only one sperm fertilizes an egg.只有一个精子使卵子受精。He fertilizes the lawn every year.他每年都给草坪施肥。The faeces contain nitrogen and it is that which fertilizes the desert soil.粪便含氮，而正是氮使荒芜的土地变得肥沃。 |