激光视力矫正手术的英文：
LASIK (= laser-assisted in situ keratomileusis)

laser是什么意思：
n. 激光；激光器；镭射器

I own a laser camera.
我有一架激光照相机。

A quite important application of lasers is in holography
激光的一个十分重要的用途是用在全息摄影方面。

Designed with a computer. Silenced by a laser. Built by a robot.
电脑设计，激光消音，机器人制造。

assisted是什么意思：
n. 援助，帮助
v. 援助，帮助；出席，到场参加

assistant starter
助理发令员

The shop assistant has undercharged us.
售货员向我们要价很低。

Assistance for the reconstruction and development of Lebanon
为黎巴嫩的重建和发展提供援助