1、reinforce
加固;強化;
The wave is to reinforce itself after one round trip.
在一個往返行程之后,波浪加強了其自身的力量
2、unprecedented
前所未有的;無前例的;
Such a move is rare, but not unprecedented.
這種做法很罕見,但也不是沒有先例的
In 1987 the Socialists took the unprecedented step of appointing a civilian to command the force.
1987年,社會黨人史無前例地任命了一位非軍隊出身的人來指揮軍隊