词汇知识i____________ to put liquid, especially a drug，into someone’s body by using a special needle
r____________ to make something smaller or less in size，amount, or price
a____________ someone who is very interested in something and spends a lot of time doing it
c____________ illegal activities in general
c____________ the way in which two facts, ideas, events etc.are related to each other, and one is affected or caused by the other.
t____________ something that is done to cure someone who is injured or ill
i____________ not allowed by the law
p____________ physically strong
d____________ the possibility that someone or something will be harmed, destroyed or killed