

여름에는 바다보다 계곡이 더 시원해요.
[jʌlɯmenɯn patapota kjekoki tʌ siwʌnɛjo.]
In summer, the valley is cooler than the sea.
이번 휴가 때 계곡으로 캠핑을 가요.
[ipʌn hjuka t͈ɛ kjekokɯlo kʰɛmpʰiŋɯl kajo.]
I'm going camping in a valley this vacation.
계곡 물이 너무 차가워서 못 들어갔어요.
[kjekok muli nʌmu t͡ɕʰakawʌsʌ mos tɯlʌkas͈ʌjo.]
The valley stream was so cold that I couldn't get in.
"계곡" is in the lesson "Beach" (Level 17), along with 12 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.