前缀：twi- 二、两

twifortned 有二形的

twilight 黎明，黄昏，曙暮光

twifold 两倍，双重

twiblade 双叶兰

twiforked 有两叉的

词根词缀：scapulo-, scapul-, -scapula, -scapular

【来源及含义】Latin: the flat, triangular bone in the back of the shoulder; the shoulder blade

【同源单词】scaphander, scaphism, scaphite, scaphocephalic, scaphognathite, scaphopodous