crackupn.撞坏(碰撞；失去控制；崩溃)crackv.破裂；砸开；发出爆裂声；撞击；破解；变嘶哑；崩溃；制裁；<非正式>开玩笑n.裂缝；裂痕；爆裂声；猛击；尝试；俏皮话adj.训练有素的cracking tendency开裂倾向cracking reaction裂化反应crack-detectionn.裂纹检验crack on the wall墙缝cracking abutment桥台裂缝crack-tip model裂尖模型crack controlling裂缝控制cracks in the wall墙面裂缝cracks propagation裂纹扩展crack out laughing发笑

1. She stormed at her son for talking back.
   她因儿子顶嘴而对他大发脾气。
2. You should not talk back to your mother.
   你不应该对妈妈顶嘴。