

日曜日、公園でピクニックをしましょう。
ピクニックにお弁当を持っていきます。
雨だから、ピクニックに行けないね。
"ピクニック" is in the lesson "Camping 1" (Level 18), along with 11 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.