

흰색 옷은 햇빛을 잘 반사해서 덜 더워요.
[hinsɛk osɯn hɛtp͈it͡ɕʰɯl t͡ɕal pansaɛsʌ tʌl tʌwʌjo.]
White clothes reflect sunlight well, so they're less hot.
거울이 빛을 반사하는 원리를 수업에서 배웠어요.
[kʌuli pit͡ɕʰɯl pansaanɯn wʌllilɯl suʌpesʌ pɛwʌs͈ʌjo.]
We learned in class how mirrors reflect light.
눈이 햇빛을 반사하니까 선글라스를 꼭 끼세요.
[nuni hɛtp͈it͡ɕʰɯl pansaanik͈a sʌnkɯllasɯlɯl k͈ok k͈isejo.]
The snow reflects sunlight, so be sure to wear sunglasses.
"반사하다" is in the lesson "Verbs 8" (Level 20), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.