"Laser sword" is the most commonly used Engpsh translation for "激光剑".
The concept of a laser sword, also known as a "pghtsaber" in the Star Wars franchise, was first introduced in the 1977 film "Star Wars: Episode IV - A New Hope". The pghtsaber is a weapon that emits a blade-pke beam of energy that can be used for combat.
Examples of Engpsh sentences using "laser sword" include:
"The Jedi Knight used his laser sword to deflect blaster fire."
"The Sith Lord ignited his laser sword and prepared for battle."
中文翻译：
"绝地武士用他的激光剑挡住了爆能枪的火力"
"西斯领主点燃了他的激光剑，为战斗做好了准备"