Word · Frequency #14542
sunglass
凸透镜；取火镜
a convex lens that focuses the sun's rays to start a fire
sunglasses（复数）指太阳镜；sunglass单数指取火凸透镜。
- 1.
a convex lens that focuses the rays of the sun; used to start a fire
凸透镜,聚焦阳光以生火
凸透镜,聚焦阳光以生火；凸透镜；太阳眼镜
In use
He used a sunglass to focus sunlight onto the dry leaves.
With a sunglass, the campers could start a fire even without matches.
The antique sunglass had a wooden handle and a thick glass center.
a/the sunglass + verb
此处 sunglass 指取火用的凸透镜，不是太阳镜。
A sunglass focuses the sun's rays into a small bright spot.
凸透镜把阳光聚焦成一个小亮斑。
use a sunglass to do sth
这个结构表示“用……来做……”。注意“太阳镜”的英文是 sunglasses（总是用复数）。
He used a sunglass to ignite the dry leaves.
他用凸透镜点燃了干树叶。
with/through a sunglass
也可写作 through a sunglass，意思相同。
The sunlight can be concentrated with a sunglass.
阳光可以用凸透镜会聚。
Common mistakes
I bought a sunglass yesterday.I bought a pair of sunglasses yesterday.
太阳镜一般用复数形式 sunglasses，表达“一副”要说 a pair of sunglasses，而不是用单数 a sunglass。
The sunglasses is on the table.The sunglasses are on the table.
sunglasses 是复数名词，谓语动词也要用复数 are，不能用 is；这是汉语没有名词复数变化而容易犯的错误。
Connections
Collocations
- wear sunglasses
- 戴太阳眼镜
- Always wear sunglasses when you go skiing.滑雪时一定要戴太阳眼镜。
- a pair of sunglasses
- 一副太阳眼镜
- I need a new pair of sunglasses for the trip.我需要一副新的太阳眼镜去旅行。
- put on sunglasses
- 戴上太阳眼镜
- She put on her sunglasses after stepping outside.她一走出去就戴上了太阳眼镜。
- take off sunglasses
- 摘下太阳眼镜
- He took off his sunglasses as he entered the dark room.他走进黑暗的房间时摘下了太阳眼镜。
- polarized sunglasses
- 偏光太阳眼镜
- Polarized sunglasses are great for driving on sunny days.偏光太阳眼镜非常适合在晴天开车时佩戴。
- sunglass case
Learner notes
Memory Tip
联想记忆：sun（太阳）+ glass（玻璃）＝把阳光聚成焦点的凸透镜/取火镜；复数 sunglasses 才是日常说的『太阳镜』。
Context & Register
语域：formal 常见场景：historical texts、optical textbooks 这个义项指用于聚焦阳光取火的凸透镜，比较正式且偏技术/历史用语，通常出现在历史叙述或光学类读物中；日常口语很少用。
Grammar Note
表示‘太阳镜’时通常用复数 sunglasses；单数 sunglass 多指聚光取火的凸透镜。
Pronunciation & Spelling
Glass, hourglass, class, grass, pass, and mass rhyme with the final /-æs/ sound of sunglass in American English. Hourglass contains the same transparent ending 'glass'. Be careful: sunglass is 'sun' + 'glass', so its first part is /sʌn/, not /sʌŋ/ ('sung'); grass is /ɡræs/ in the US but often /ɡrɑːs/ in British English.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.