プログレッシブ和英中辞典(第３版)の解説
いちいち【一一】
1 〔一つ一つ〕one by one
- それをいちいち数え上げたらきりがない
If you start counting them one by one, there will be no end to it.
2 〔ことごとく〕
- いちいち文句を言うな
Don't find fault with everything.
3 〔詳しく〕in detail
- いちいち説明しなくてよい
You needn't 「explain in detail [go into detail].