1. | 刀身；刀片；刀刃the flat part of a knife, tool or machine, which has a sharp edge or edges for cutting |
2. | （机器上旋转的）叶片；桨叶one of the flat parts that turn around in an engine or on a helicopter |
the blades of a propeller 螺旋桨叶 | |
rotor blades on a helicopter 直升机的旋翼 |
3. | （船桨的）桨叶，桨身the flat wide part of an oar(= one of the long poles that are used to row a boat) that goes in the water |
4. | （草的）叶片a single flat leaf of grass |
5. | （溜冰鞋的）冰刀the flat metal part on the bottom of an ice skate |
