大黄（药用大黄）

rhubarb(Rheum officinale)

• electric
• electrical
• electrician
• electricity
• electronic
• electronically
• electronics
• elegance
• elegant
• element
• elementary
• elementary school
• elephant
• eleven
• else
• elsewhere
• email
• embarrass
• embarrassed
• embarrassing
• embarrassment
• emerge
• emergency
• emotion
• emotional