lower register 的近义词 19 个

• bottom
• extent
• intensity
• base
• declination
• deepness
• draft
• drop
• expanse
• lowness
• measure
• measurement
• pit
• pitch
• profoundness
• profundity
• remoteness
• sounding
• fathomage

lower register 的反义词 2 个

• mountain
• height