switchblade knife

常見例句

用作名詞 (n.)

• The knife mechanism is essential to any folder.
  刀具的機(jī)械裝置對(duì)任何折刀都是必須的。
• The policmen seized the folding knife that was used by the scoundrels.
  干警繳獲了歹徒用來行兇的折刀。
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