重點講解：
1. shoot down 擊落(飛機、直升機、導彈等)；
His plane was shot down over North Vietnam in 1967.
他的飛機于1967年在北越被擊落SXs2]P%NbyykLxG。
2. look into 考察；調查；研究；
They set up a working party to look into the issue.
他們設立了一個特別工作組來調查這個問題;^^;2tyEDIq。
3. be accused of 指控；控告；
Her assistant was accused of theft and fraud by the police.
她的助手被警方指控犯有盜竊和欺詐罪vMV4p45hT)%^。
4. step back 退一步，置身事外(思考)；
In a country where politicians rarely make self-sacrifices, her step back from power was regarded as astonishing.
在印度，很少有政治家愿做出自我犧牲，因此，她退出權力中心的做法令人驚訝j7)RM1Oy^MAf1。