glasses with darkened lenses to protect one's eyes while observing the sun, also sun-glasses, 1878, from sun (n.) + glasses. In popular (non-astronomy) use from 1916. Earlier sunglass (1804) meant a burning glass.
权威例句
1. She slipped on a pair of sunglasses.
她迅速戴上一副太阳镜。
2. a pair of sunglasses
一副太阳镜
3. There were some cool dudes in sunglasses standing about.