

家の屋根の下にツバメが巣を作りました。
木の上に鳥の巣が見えますか。
巣の中に小さな卵が三つありました。
"す(巣)" is in the lesson "Small birds" (Level 10), along with 13 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.