专用交换机

private branch exchange(PBX)

• reactor
• read
• reader
• readily
• reading
• readjust
• ready
• reaffirm
• real
• realistic
• reality
• realization
• realize
• really
• realm
• reap
• rear
• rearrange
• reason
• reasonable
• reassess
• reassure
• rebel
• rebellion
• rebuild