英文關鍵字
alternative
ancient
animal
annelid
bandaging
bite
black
bleeding
blood
care
closed
closeup
dangerous
disgust
doctor
fingers
glass
glasses
green
hands
healing
health
hermaphrodite
hirudo
hirudotherapy
holding
human
hungry
invertebrate
leech
leeching
medical
medicinal
medicine
nature
parasite
patient
relief
science
skin
sucker
tentacle
therapy
treatment
watching
water
wet
worm