与"back to back sitting"相近的词条

...

• back swing
• back talk
• back teeth
• back titration
• back-to-back ionization chamber
• back to back sitting
• back to life
• back to roll
• back translation
• back turning of head
• back-type life support system
• back up copy
• back-up data
• back-up procedure
• back up timer
• back valve

...