sub-sonic

常见例句

• I had to sub for the referee, who was sick.
  裁判病了，我得代为裁判。
• A trademark used for a sonic depth finder.
  回音测深仪一种声音测深仪的商标
• The sub can outrun any destroyer.
  这艘潜水艇比任何驱逐舰航行得都快。
• I have to sub on her for the new car I want to buy.
  要买那辆新车，我得向她借点儿钱。
• Pneumatic signals will travel only at sonic speeds.
  气动信号的传输速度仅仅相当于音速。
• Sonic Lock Loud Alarm deters Laptop Theft!
  用强劲声波警报锁来阻止你的本本被人偷窃!
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