英文關鍵字
a
africa
african
aids
boy
boys
candid
change
child
children
cholera
climate
countries
developing
disease
drink
drinking
female
females
girl
girls
happiness
happy
health
healthcare
healthy
help
hiv
joy
joyful
kid
kids
life
malaria
one
pupil
pupils
save
sick
sickness
smile
smiling
student
symbol
tap
two
wash
washing
water