blade
/bleɪd; bled/ n
1
(a) flat cutting part of a knife, sword, chisel, etc （刀、剑、凿等的）刃
a penknife with five blades 五开的摺刀. =>illus at knife, sword 见knife, sword.
(b) = razor-blade (razor).
2 (dated 旧) sword; swordsman 剑; 剑客; 击剑家.
3 flat wide part of an oar, a propeller, a spade, a cricket bat, etc （划水桨、螺旋桨、锹、铲、板球击球板等的）扁宽平面部分. =>illus at rowing-boat row见rowing-boat之插图.
4
(a) flat narrow leaf of certain plants, esp grasses and cereals （植物的）叶片（尤指草类与谷类的）
a blade of grass/corn 一片草叶[禾叶].
(b) flat part of a leaf or petal （叶子或花瓣的）扁平部分.