activity (EN)

名詞

名詞 “activity”

1. 活動
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   Reading is an activity she enjoys every evening.
2. 活動状態
   The office was buzzing with activity after the big announcement.
3. アクティビティ
   The playground offers a variety of activities to children.
4. 放射能 (放射性物質の崩壊速度)
   The scientist measured the activity of the radioactive sample.
5. 活性 (化学反応性)
   The chemical's activity determines how it will interact with other substances.