conductor：领队；(乐队)指挥；列车员，售票员；导体，导线

词根词缀：con-共同,一起 + -duct-引导 + -or人

• arachnid
• aran
• arbiter
• arbitrage
• arbitrary
• arbitrate
• arbor
• arboreal
• arboretum
• arc
• arcade
• Arcadian
• arcane
• arch
• arch-
• archaeologist
• archaeology
• archaeopteryx
• archbishop
• Archbishop
• archdeacon
• archdiocese
• archduchess
• archduke
• archer