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