redouble
v[I, Tn]
1 (cause sth to) become greater, stronger, more intense, etc (使某事物)变得更大、 更强、 再加倍
Her zeal redoubled. 她热情倍增.
We must redouble our efforts. 我们应该加倍努力.
2 (in the card-game of bridge) double again (a bid already doubled by an opponent) (桥牌中)将(对方已加倍的叫牌)再加倍.