

鍋に蓋をして、五分ぐらい煮てください。
このびんの蓋、固くて開かないよ。
電子レンジで温める時は、蓋を取ったほうがいいですか。
"ふた(蓋)" is in the lesson "Cooking 2" (Level 39), 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.