1) peril of the north border

北边之患
2) crises of the Imperial frontiers

边患
3) the disaster of "Japanese pirates"

倭寇之患
4) There's no need to worry.

何患之有。
5) A world of affliction and misfortune

忧患之士
6) A great disaster of inuhndation

淫潦之患
补充资料:北边
①(~儿)北。②北方②。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条