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(单词翻译:双击或拖选)
Children aid malaria vaccine hunt
Vocabulary
rife
something unpleasant which is common
resistant
not affected or harmed by an illness
parasite
living thing which lives inside other larger living things and uses them for food
bursting out
breaking open and leaving; escaping
injecting
putting liquid inside a body using a needle
trials
tests
assess
decide the importance (of something)
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