这也像是对我们的老师四十年的优秀教学，对今后不属于他们的国土表示他们的敬意的一种方式…
It was also a way of thanking our teacher for his forty years of faithful service , and of paying their respects to the fatherland which was vanishing .
这么说我们的凶手逍遥法外了四十年。
So our guy got away with it 40 years ago .
我们的四十年