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(单词翻译:双击或拖选)
Camels could be source of deadly virus
Vocabulary
striving
making a great effort
spreads
goes from one person to another
antibodies
substances which are a part of blood and which help to protect against diseases
reservoirs
sources
prevalent
widespread, frequent
priority
most important consideration, task to be dealt with first
crucial
very important
halting
stopping
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