重点讲解：
1. shoot down 击落(飞机、直升机、导弹等)；
They claimed to have shot down one incoming missile.
他们声称击落了一枚来犯的导弹w^_FiG(V08*,。
2. a series of 一连串；一系列；连续；接连；
The novel is constructed from a series of on-the-spot reports.
小说是基于一系列现场报道构思而成的i&S3DBF,z6SP9,XH2。
3. brush off 不理睬；冷落；
When I tried to talk to her about it she just brushed me off.
当我试图和她谈这件事时，她就是不理我+&]z6xn~HvOF9*s~)&iv。
4. in the middle of (某件事或某段时间的)中期；
She was born in the middle of a rain storm.
她出生在一场暴风雨中RACnJB17C.1o[zuoXa。