

子どもたちが公園を飛び回る姿を見ると、元気が出ます。
春になると、花の周りをちょうが飛び回ります。
部長は出張で世界中を飛び回っているそうです。
"とびまわる(飛び回る)" is in the lesson "Verbs 4" (Level 6), 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.