1
a laser
可数名词，单数形式前常用冠词a或the。
The surgeon used a laser to remove the tumor.
外科医生用激光切除肿瘤。
激光；激光器
先理解核心含义，再看它在真实句子里的用法。
激光；激光器
a device that produces a narrow, intense beam of light (laser light); also, the light itself
The surgeon used a laser to remove the tumor.
外科医生用激光切除肿瘤。
一种产生单色、相干光束的设备。
A device that produces a monochromatic, coherent beam of light.
从某些伞形科植物中获得的树脂。
A gum resin obtained from certain umbelliferous plants.
一种简单的小艇。
A simple type of dinghy
光放大通过受激辐射发射的缩写；产生强烈单色相干光束的光学装置
an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
The laser cut through the metal sheet with precision.
激光精确地切割了金属板。
Doctors use a laser to correct vision problems.
医生使用激光来矫正视力问题。
The laboratory is equipped with several high-powered lasers.
实验室配备了几台高功率激光器。
可数名词，单数形式前常用冠词a或the。
The surgeon used a laser to remove the tumor.
外科医生用激光切除肿瘤。
复数形式泛指一类设备。
Lasers are used in many industrial applications.
激光器被用于许多工业应用。
laser可直接修饰名词，表示与激光相关的。
Laser technology has advanced rapidly.
激光技术发展迅速。
特指某个激光器。
The laser in the lab needs calibration.
实验室里的激光器需要校准。
Not this
He used laser to cut the metal.
Use this
He used a laser to cut the metal.
激光是可数名词，前面需要用冠词 'a' 或 'an'。
Not this
The lab has three laser.
Use this
The lab has three lasers.
激光是可数名词，复数形式要加 -s，表示多个激光器。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
激光束
The laser beam cut through the metal with precision.
激光束精确地切开了金属。
激光手术
He underwent laser surgery to correct his vision.
他接受了激光手术来矫正视力。
激光打印机
Our office uses a high-speed laser printer.
我们办公室使用一台高速激光打印机。
激光笔
The teacher used a laser pointer to highlight key points.
老师用激光笔强调重点。
激光治疗
She is considering laser treatment for her skin condition.
她正在考虑用激光治疗她的皮肤问题。
激光雕刻
They offer custom laser engraving on gifts.
他们提供礼品上的定制激光雕刻服务。
激光般专注；极度专注
She studied with laser focus for the final exam.
她以激光般的专注力准备期末考试。
激光制导的；非常精确的
The marketing campaign was laser-guided to target young professionals.
这次营销活动精确对准年轻专业人士。
像激光一样的；极其精确的
His laser-like analysis cut through the confusion.
他像激光一样精准的分析穿透了混乱。
头上绑着该死的激光束的鲨鱼。
Dr. Evil famously talked about sharks with frickin' laser beams attached to their heads.
邪恶博士著名地谈论了头上绑着该死的激光束的鲨鱼。
Use laser naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想'laser'中'la'像'拉'，'ser'像'射'，激光就是拉长射出。
register: neutral; contexts: scientific, medical, industrial; note_zh: 通常用于科学、医学和工业领域，也出现在日常用语中。
常作定语（如 laser printer）
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.