bi·man·u·al /(ˌ)baɪˈmænjəwəl, jəl/
  bi·man·u·al /(ˈ)baɪˈmænjə(wə)l/ 形容詞
  雙手的,用兩手的
  bimanual
       adj : requiring two hands or designed for two people; "a
             two-handed sledgehammer"; "a two-handed crosscut saw";
             "a machine designed for bimanual operation" [syn: two-handed]