英文關鍵字
cow
nose
nostrils
muzzle
closeup
curiosity
sniffing
wet
saliva
sense
smell
sniff
taste
grazing
grass
cattle
farm
livestock
pasture
agriculture
rural
mammal
animal
beef
dairy
nature
outdoors
field
hair
horn
ear
tag
identification
number
breed
species
environment
climate
nutrition
forage
sustainable
ecosystem
biology
farming
serenity
tranquility