v.(使)破裂,裂开;砸开,重击;(使)发出爆裂声;(因压力而)崩溃,瓦解;变沙哑;开(玩笑);找到解决…的方法;
n.缝隙,裂缝;噼啪声;尝试;笑话;
adj.训练有素的;一流的;
例句:
Suddenly there was a loud crack and glass flew into the car.
突然发出一声巨大的爆裂声,玻璃碎片飞进了车里。
The police ran a sting operation to crack down on illegal guns.
警方展开诱捕行动以严打非法枪支。
You've just got to crack on, whatever the problems are.
不管有什么问题,你都得抓紧时间努力干。