Switchblades
(switchblade 的第三人称 -s形式) n. 弹簧小折刀（按钮式弹簧开启的, 等于switchblade knife）
🗣️ 情景例句
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
Please send us all the data concerning your Hero Brand fountain pens and ball pens, so we can introduce your products to our customers.
请寄给我们有关你方英雄牌自来水笔和圆球笔的资料，以便我们向顾客介绍你们的产品。
Here is another photograph.
这是另一张照片。