1.ahead of (时间、空间)在……前面
例句:I think he made a tactical blunder by announcing it so far ahead of time.
我认为他在时机远未成熟时就把这事说了出去是一种失策 。
2.spike v. 猛增;急升
例句:Although you'd think business would have boomed during the war, there was only a small spike in interest.
人们会认为战争期间生意会很红火,但实际上利息只有小幅上升 。