Do not give pointed items such as knives or scissors as they are considered unlucky.

避免送像道具或剪刀类的尖状物，它们会被看做是不吉利的。

youdao

They heal remarkably quickly making them nearly impossible to kill with mundane weaponry such as knives or small firearms.

他们明显迅速的自愈能耐使他们近乎不也许被刀子或许轻兵器之类的世俗兵器杀害。

youdao

They heal remarkably quickly, making them nearly impossible to kill with mundane weaponry such as knives or small firearms.

他们显著快速的自愈能力使他们几乎不可能被刀子或者轻武器之类的世俗武器杀死。

youdao

Ancient cultures broke off pieces of obsidian to make knives and weapons such as arrows.

VOA: special.2009.09.16

We believe the best way to do this is through a combination of tough enforcement and education, such as the No Knives Better Lives campaign and the work of Violence Reduction Unit to tackle the root causes of violence and end this blight on our communities.

BBC: Man in a hoodie holding a knife

Pistole said the TSA sought to distinguish small pocketknives, such as those equipped with corkscrews, from sturdier knives used primarily as weapons.

CNN: March 7, 2013 -- Updated 0312 GMT (1112 HKT)

Kip Hawley, who oversaw the TSA from 2005 to 2009, said the search for knives interferes with the search for objects such as bombs and toxins that can threaten aircraft.

CNN: March 10, 2013 -- Updated 0334 GMT (1134 HKT)