

今までにいくつかの国を旅行したことがあります。
会議でいくつかの問題が出ました。
いくつかの店を見てから決めませんか。
"いくつかの" is in the lesson "Pronouns" (Level 30), 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.