

朝は少し涼しいですね。
山の上は涼しいと思います。
涼しい風が気持ちいいね。
"すずしい(涼しい)" is in the lesson "Cold weather" (Level 13), along with 15 other useful words. LinDuo has 180 topic lessons like this one, 2,379 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.