1
lift/open the visor
作头盔面甲时，动词常用 lift/open，表示“掀起/打开”。
He lifted the visor to show his face.
他掀起面甲，露出脸。
帽檐；帽舌
先理解核心含义，再看它在真实句子里的用法。
帽檐；帽舌
The front part of a cap that projects over the eyes to shade them.
He lifted the visor to show his face.
他掀起面甲，露出脸。
A part of a helmet, arranged so as to lift or open, and so show the face. The openings for seeing and breathing are generally in it.
中世纪头盔上带眼缝的面甲
a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face
A mask for the face.
向前突出遮挡阳光的帽檐
a brim that projects to the front to shade the eyes
In the bright sunlight, she lowered the visor of her cap to shield her eyes.
在明亮的阳光下，她压低了帽子的帽檐以遮挡眼睛。
His favorite baseball cap has a dark visor that helps reduce the glare.
他最喜欢的棒球帽有一个深色帽檐，有助于减少眩光。
To protect her face from the sun, she bought a hat with a wide visor.
为了保护脸部免受日晒，她买了一顶宽帽檐的帽子。
作头盔面甲时，动词常用 lift/open，表示“掀起/打开”。
He lifted the visor to show his face.
他掀起面甲，露出脸。
指帽檐时，常说 the visor on a cap/hat，表示帽子前伸的遮阳部分。
The visor on this cap shades your eyes.
这顶帽子的帽檐能遮挡阳光。
Not this
He wore visor to protect his eyes from the sun.
Use this
He wore a visor to protect his eyes from the sun.
“visor” 是可数名词，单数形式前需要不定冠词 a 或 an。补上 a 后句子才符合英语可数名词的用法。
Not this
She blocked the strong sunlight by a visor.
Use this
She blocked the strong sunlight with a visor.
表示“用……工具/手段”时，英语用介词 with，而不用 by。by 通常引出施动者、方式或时间，不能用来引出具体工具。
Not this
The riders lifted their visor to see the road clearly.
Use this
The riders lifted their visors to see the road clearly.
主语是复数（riders），对应的名词 visor 也必须用复数 visors。汉语名词没有复数变化，所以学习者容易遗漏 -s，但英语中复数意义需要用复数形式表达。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
遮阳帽檐
The sun visor on his cap kept the sun out of his eyes.
他帽子上的遮阳帽檐挡住了阳光。
头盔面甲
The helmet visor had two narrow slits for the knight to see through.
头盔面甲上有两条窄缝，骑士可以透过它们看东西。
抬起面甲
He raised the visor and smiled at the crowd.
他抬起面甲，向人群微笑。
防护面罩
Welders wear a protective visor to shield their faces from sparks.
焊工佩戴防护面罩，以保护面部不受火花伤害。
Use visor naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 vision（视觉）的 vis——visor 帽檐或面甲虽遮光，仍留缝让你看。
语域：neutral 常见场景：日常谈论帽子、头盔或汽车时、历史或影视讨论中世纪盔甲时 该词为中性常用词，口语和书面语都适用。具体指帽檐、头盔面罩还是汽车遮阳板，需结合语境判断；多用于描述防护或遮阳装置的场景。
visors
Dictionary facts from ECDICT, WIKTIONARY.