

姉は大きな会社で会計士として働いています。
税金のことは会計士に相談したほうがいいですよ。
会計士になるのは難しいですか。
"かいけいし(会計士)" is in the lesson "Career" (Level 16), along with 17 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.