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1·Fought like a switchblade.

像把折叠刀一样的战斗！

2·Don't be a switchblade. Normally the switchblade is thought of a backstabber, often taking credit for someone else's work.

不要出语伤人。一般来说，出语伤人者被看作一位背后捅刀子的人，通常会领别人工作的功劳。

3·Enter the Switchblade, a flying motorcycle that Northern California engineering firm Samson Motorworks hopes to have on the road and in the sky by next year.

是位于加利福尼亚北部的工程公司Samson Motorworks希望明年能够在陆地和天空中使用的一种飞行摩托车。

4·Using such a common transporter to ferry a potent medication inside a resistant cell is a bit like recruiting your grandmother to cart a load of switchblade knives through customs.

利用这一常见的载体将有效的药物运送至耐药细胞中，这有点像让你的祖母装一车开关闸刀通过海关。