词语

磨踵灭顶踵：脚后跟。从头顶到脚跟都擦伤了。形容不辞劳苦不顾身体。

灭顶水没过头顶多指淹死。例灭顶之灾(指致命的灾祸)英be drowned; be buried beneath the waves;

灭顶之灾涉于水中而灭没其顶的灾祸。比喻遭到致命打击损失惨重。例他的研究项目遭了灭顶之灾。英crowning calamity; be swamped in the vast ocean;