英文關鍵字
beautiful
breath
breathing
caucasian
cellophane
chest
clean
disease
earth
ecological
ecosystem
embolism
emotion
environment
face
garbage
health
hypertension
lung
nature
outdoors
packaging
plastic
pleural
pleurisy
pneumonia
pneumothorax
pollution
polyethylene
polythene
problem
protect
protection
pulmonary
respiratory
responsibility
sad
sunlight
transparent
waste
white
woman
wrapped
young