

有名な先生の元で料理を学びました。
子どもの頃は祖父母の元で育てられました。
厳しい監督の元で練習するのは大変ではありませんか。
"のもとで(の元で)" is in the lesson "Adverbs 1" (Level 23), 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.