重点讲解：
1. go by
（时间）流逝，过去；
eg. My grandmother was becoming more and more sad and frail as the years went by.
随着时间的流逝，我的祖母变得日益伤感和虚弱~ob@r0K5+o=*,X。
eg. The excitement died down as time went by.
随着时间的推移，激动的心情逐渐平静下来K-(h2QGV8pC1C。
2. back in
（表示描述场所的转换）在曾提到过的地方；以前；过去；追溯至；
eg. Meanwhile, back in London, Palace Pictures was collapsing.
与此同时，伦敦的皇宫影业公司也正在分崩离析g[WF2F*b6]5u*]sLe+G4。
eg. The story starts back in 1950, when I was five.
故事可以追溯到1950年，那时我才5岁HURj!|V@zS.。
3. kind of
稍微；有几分；有点儿；
eg. `Is she interested?' `Well, kind of.'
"她感兴趣吗？"“嗯，有点儿”
He was kind of a fool.
他有点儿傻uEq[rC|jGq7yS。