
好词典

源自古英语 'blæd',原指植物的叶子,后引申为刀剑的锋利部分。与古诺尔斯语 'blað' 同源。
❶ 指刀、剑等工具的锋利部分,通常由金属制成,用于切割或劈砍。也可指某些机械设备的类似部件。
“The chef sharpened the blades of his knives before cooking.”
(厨师在烹饪前磨快了刀具的刀刃。)
“The helicopter's blades spun rapidly as it took off.”
(直升机起飞时,螺旋桨叶片快速旋转。)
on the blade's edge — 形容处于危险或紧张的境地,就像站在刀锋上一样不稳定。
“The climbers were on the blade's edge between safety and disaster.”
(登山者们处于安全与灾难之间的危险境地。)