Chinese translation of 'earplugs'

• plan-
• plan a celebration
• plan an attack
• planar
• planaria
• planarian
• planarity
• planar process
• planate
• planation
• planch
• planchet
• planchette
• planck
• planck constant
• planck's constant
• planck's law
• plancks-law
• planck's radiation law
• plancks-radiation-law
• plane
• plane angle
• plane chart
• plane crash
• plane down