1.national security 國家安全
例句:If there is one issue that should unite us – as Republicans and Democrats – it should be our national security.
如果說還有什么問題能讓共和黨人和民主黨人團結起來,那便是我們的國家安全 。
2.let go 放開,釋放
例句:For your own sake, let go of the past.
為了你自己,讓過去的事情過去吧 。