- 重点词汇
- 怀孕
pregnant; preggers; conceive; gestate; carry; be pregnant; be with child; be in the family way; have a bun in the oven; pregnancy; conception; gestation; maternity; up the duff; in the family way
- 四个
tetrad; four
- 胎儿
embryo; fetus; foetus; unborn child
- 性别
gender; sex; sexuality; sexual distinction; sexual differentiation; sexual