词根:drastic
adv.drastically 彻底地;激烈地
1.We're really just now beginning to understand how quickly drastic climate change can take place.
我们现在才刚刚开始了解剧烈的气候变化会以多快的速度发生。
2.Foreign food aid has led to a drastic reduction in the numbers of people dying of starvation.
外国的食品援助使得因饥饿而死亡的人数大幅下降。