英文關鍵字
anatomy
baby
biology
birth
blastocyst
cell
diagram
egg
embryo
female
fertile
fertility
fertilization
fertilize
fertilized
fusing
gametes
health
human
illustration
isolated
ivf
life
male
medical
medicine
micro
ovulation
ovum
pregnancy
pregnant
reproduction
reproductive
science
sex
sperm
spermium
step
vector
woman
zygote