| 前后搭配的名词 | 中文含义 | 频数 | 频率 |
| global fertility level | 数据调查类 | 497 | 6.125% |
| fertility rate/birth rate | 0.500% | ||
| fertility treatment | 生育问题类 | 609 | 4.625% |
| fertility issues/problems | 2.875% | ||
| fertility management | 0.625% | ||
| marriege | 生育婚姻类 | 122 | 0.500% |
| population trends | 0.250% | ||
| fertility option | 0.375% | ||
| sexual activity | 0.125% | ||
| children | 0.250% | ||
| adoption | 0.125% | ||
| fertility monitors | 生育监测 | 18 | 0.250% |
| Sexuality、gender(female、male)、she/her/he/his | 主体类 | 9 | 0.125% |
| sharp fall | 骤降 | 9 | 0.125% |