首页英语词典activityactivity英英释意

activity

英 [æk'tɪvɪtɪ] 美[æk'tɪviti]
  • n. 活动;行动;活跃

英英释意


1. any specific activity;
"they avoided all recreational activity"
2. the state of being active;
"his sphere of activity"
"he is out of action"
3. an organic process that takes place in the body;
"respiratory activity"
4. (chemistry) the capacity of a substance to take part in a chemical reaction;
"catalytic activity"
5. a process existing in or produced by nature (rather than by the intent of human beings);
"the action of natural forces"
"volcanic activity"
6. the trait of being active; moving or acting rapidly and energetically;
"the level of activity declines with age"