名词 “activity”
单数activity,复数activities或不可数
- 活动
Reading is an activity she enjoys every evening.
- 活跃
The office was buzzing with activity after the big announcement.
- 活动 (娱乐或消遣)
The playground offers a variety of activities to children.
- 活度
The scientist measured the activity of the radioactive sample.
- 活性
The chemical's activity determines how it will interact with other substances.