

めいおうせいは今、惑星ではないそうです。
めいおうせいはとても遠くて寒い星です。
子どものころ、めいおうせいは九番目の惑星でしたよね?
"めいおうせい(冥王星)" is in the lesson "Space" (Level 25), 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.